International WORKSHOP on ``Emerging trends in High Energy and Condensed matter Physics"

Name: International WORKSHOP on ``Emerging trends in High Energy and Condensed matter Physics"
Start: 2021-01-11T11:25:00+05:30
End: 2021-01-12T23:00:00+05:30
Location: No location set

11 янв. 2021 г., 11:25 → 12 янв. 2021 г., 23:00 Asia/Kolkata

Department of Physics, GDC, Budgam, J&K, India

Описание

Department of Physics, GDC, Budgam, J&K, India is organizing (ONLINE) Workshop on "Emerging trends in High Energy Physics and Condensed matter Physics"

The purpose of this Workshop is to give participants an opportunity to present results and discuss various aspects of the High energy physics and Condensed matter Physics.

This meeting will allow the experts from different fields to exchange ideas that have over the years been at the forefront of these disciplines.

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TOPICS TO BE DISCUSSED

High Energy Nuclear and Particle Physics

Strongly-interacting matter at finite temperature
QCD phase structure at non-zero baryon density
QCD phase diagram under strong external magnetic field
QCD phase diagram in astrophysics
Transport phenomena and related issues
Experimental results and future facilities
Theoretical ideas and experimental searches of the critical point
Inhomogeneous phases in strongly interacting matter
QCD phase structure with chiral imbalance
QCD equation of state and Neutron stars
Particle production in Heavy Ion Collisions at RHIC, LHC
Rapidity and Transverse distributions of particles at various Collision energies
High Multiplicity phenomenon in Heavy Ion Collisions
Multifractal analysis of Photon multiplicity distribution
Standard Model and Beyond
CP violation

Cosmology

Fundamental Theory and Cosmology. ...
Critical tests of the inflationary paradigm. ...
Gravitational waves and signatures of the early Universe. ...
Mutability of the laws of physics. ...
Black Holes. ...
Other research: dark energy and dark matter.

Condensed Matter Physics

high temperature superconductivity.
strong correlations.
topological phases of quantum matter.
quantum magnetism.
Bose-Einstein condensates.
nanostructures.
quantum computing.
synthesis of new quantum materials.

Advisory Committee

Prof. Zahida Naseem (Principal, GDC, Budgam, Kashmir, J&K, India) {Chairperson of the Organizing Committee}

Prof. Saeed Uddin (Department of Physics, Jamia Millia Islamia, New Delhi, India)

Roman Zhokhov (Institute of High Energy Physics, Protvino, Moscow, Russia)

Rameez Ahmad Parra (Department of Physics, Jamia Millia Islamia, New Delhi, India)

Dr. Saleem Yousuf (Department of Physics, GDC, Budgam, J&K, India)

Dr. Zaheer Abbas (Department of Physics, GEC, Jahanabad, Bihar, India)

Dr. Waseem Bashir (Department of Physics, GDC, Budgam, J&K, India)

Hamid Nanda (Department of Physics, Jamia Millia Islamia, New Delhi, India)

Rasheed Ahmad (Department of Physics, KGK (PG) College, MJP, Rohilkhand university, India)

Dr. Surendra Pratap (Department of Physics, Central University of Himachal Pradesh, India)

Structure of the workshop

Two sessions with 4-5 invited talks of 25 + 5 minutes duration will be arranged every day.

The question answer session will be held after every presentation for 5 minutes in which speaker can address the question posed.

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Important Dates

January 11, 2021 - end of Registration
January 04, 2021 - end of abstract submission
January 11, 2021 - start of workshop

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Please, send us your abstracts on bashir_waseem@yahoo.com or directly at https://indico.ihep.su/event/577.

Please, inform organizing committee about any changes in the abstract and presentation.

The participants are advised to keep presentation of their talk ready for sharing on Zoom platform.

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Participation

Participation with talks is by invitation of the Organizing Committee.
In the case of a proactive request the decision is made by the organizing committee.

The sessions will be online by zoom. The link will be sent to all the participants and posted on the site.

There is no registration fee.

Advertised via: https://www.conference-service.com/conferences/in/high-energy-physics-and-accelerators.html

Регистрация

Registration Form

Участники

Aadesh Prajapati
Ab Mateen Tantray
Abdessamad Didi
Abhijit P. Sarode
Abhishek Kumar
Abida Bashir
Ahmad Ahmad
Amit Kumar
Anshul Singhal
ARIJIT CHAKRABORTY
ASHUTOSH TIWARI
Athar Ahmad
Bhavesh Sirvi
DAMINI SINGH
Danish Farooq Meer
Debasish Das
DEEPAK SAH
Dharmendra Yadav
Evita Merin Xavier
FATIN FARHANA AWANG
Gabriya L R
Gaurav Sapkal
Gobinda Soni
Gregory Johnson
Hamid Nanda
Hamid Nanda
Haowu Duan
Harish Madival
HIMADRI PARASHAR
Inamul Bashir
Iqbal ahmad Shah
ISHFAQ AHMAD RATHER
JUHI VARDANI
KARAM CHAND
Kavita Negi
Kayleigh Mathieson
KHURSHEED PARREY
Koti Kunja
Krishna Kumar
Madan Singh
MAHESH GAURAV YADAV
Majid Yousuf
MANOJ KUMAR
Matridutt Sharma
Mazen Ali
Meenal Chauhan
MEGHNA RATHORE
MEGHNA RATHORE
Mijas Tiwari
Mir Hashim Rasool
Mohamed Housni El Moubaraka Ben Abdou Chakour
MOHD ABUSHAD
Mohd Sadiq
Mohsin Khan
Mudasir Farooq
Mudasir Farooq
Mukesh Suthar
Muneeb Mushtaq
Munerah alrashed
Mursaleen Nazir
Naila Islam
Navdeep Kaur
Nazama Kouser
Neelu Mahajan
Nidhi Mehta
Nikhil Hatwar
Nobel Hajare
PARVATHI P
Payal Roy
Payal Roy
Ponsudana Muthuraj
Pooja Sharma
Preeti dahiya
Preeti Kumari
PRIYA SHARON J
Ragul Nagarajan
Rahmat Rahmat
Rameez Ahmad Parra
Rashed Hussain Lone
Rasheed Ahmad
Reena Rani
Renu Dhayal
Roman Zhokhov
Saleem Yousuf
SAMANDEEP SHARMA
Santy M Thomas
Shabir A. Mir
Shalu Sharma
Shih-Yen Tseng
Shoaib Nazir
Sina Etebar
Smritimoy Chakraborty
Sonia Rani
Suhail Ahmad
Suman Mondal
Suraj Kumar Rai
Surender Pratap
Surender Pratap
Suvas Chandra Chaudhary
Syed Mubashir Ahmad
Tahir Murtaza
THOUNAOJAM PUNSHILEMBI
Ubaid Manzoor
Ubaid Tantary
Umair Ashraf
Umesh Bhakar
waseem bashir
YAWAR ALAMGEER
Yogendra K B
ZAHEER ABBAS

Waseem Bashir

bashir_waseem@yahoo.com

понедельник, 11 января
- пн, 11 янв.
- вт, 12 янв.
- 11:30 → 12:00
  
  opening cermony (Principals Address + Subject Expert + Converener Research + Organizer) 30m
  
  Address + Subject Expert + Converener Research + Organizer)
  
  Speaker: opening cermony
- 12:00 → 12:30
  
  "Leptons from HF decays : Measurements and Inferences" 30m
  
  In this talk I shall be covering on the selected results from LHC and RHIC. I shall be covering spectra and correlations (flow) and also nuclear modification factor. I shall be discussing quarkonia flow in further detail. Due to the larger mass of the bottomonium states compared to the charmonium ones,the measurement of bottomonia production in proton-nucleus collisions allows a study of CNM effects in a differentkinematic regime, therefore complementing the J/Psi studies[1].For smaller systems like p+A and p+p we have less deeply bound bottomonia states and thus a comparatively larger chance to escape. This means that more states become measurable, which is a positive feature. On the other hand,it also means that the escape mechanism which underlies the anisotropic flow of bottomonia may become largely ineffective, in particular for the Upsilon(1S). Accordingly,the measurement of a sizable flow for Upsilon(1S) in small systems[1] would probably hint at the importance of initial-state correlations. Hence understanding small systems becomes very important and such studies will be also stressed and presented.[1] D. Das and N. Dutta, Int. J. Mod. Phys. A 33, no. 16, 1850092 (2018)
  
  Speaker: Debasish Das (Saha Institute of Nuclear Physics)
- 12:00 → 14:00
  
  Chairperson: Waseem Bashir 2h
- 12:30 → 13:00
  
  Exploring axial U (1) restoration in a modified 2+1 flavor Polyakov quark meson model 30m
  
  Exploring axial U (1) restoration in a modified 2+1 flavor Polyakov
  quark meson model
  Suraj Kumar Rai a,∗ , Vivek Kumar Tiwari a
  a
  Department of Physics, University of Allahabad, Prayagraj,India,211002.
  E-mail: surajrai050@gmail.com, vivekkrt@gmail.com
  Topic(s): Strongly-interacting matter at finite temperature
  Abstract: We report on the U A (1) symmetry restoration resulting due to temperature dependence of
  the coefficient c(T ) for the Kobayashi-Maskawa-’t Hooft determinant (KMT) term in a modified 2+1 flavor
  Polyakov loop quark meson model having fermionic vacuum correction term (PQMVT). Temperature depen-
  dence of KMT coupling c(T ) drives the non-strange condensate melting to significantly smaller temperatures
  in comparison to the constant c case. Further due to c(T ), m η 0 decreases from its vacuum value by 220 MeV
  near T=176 MeV after the chiral transition (T c χ = 154.9 MeV). This is similar to the η 0 in-medium mass
  drop of at least 200 MeV as reported by Csorgo and Vertesi in Ref [Csorgo, Vertesi], as an experimental
  signature of the effective restoration of U A (1) symmetry. The pseudoscalar mixing angle θ p achieves anti-
  ideal mixing in the influence of c(T ). The η meson becomes light quark system (η N S ) at T=176 MeV and
  changes its identity with η 0 meson which becomes strange quark system (η S ). The degenerated temperature
  variations of σ, π meson masses merges with the temperature variations of the masses of degenerated a 0 , η
  mesons near 275 MeV. It means that for c(T ) when m σ = 400 MeV, the U A (1) restoration takes place at
  1.75 T c χ =275 MeV.
  
  Speaker: Suraj Kumar rai (University of Allahabad)
- 13:00 → 13:30
  
  Dualities in three color and two color QCD phase diagram 30m
  
  Dualities in three color and two color QCD phase diagram
  
  Speaker: Dr Roman Zhokhov (Institute of High Energy Physics, Protvino,Moscow, Russia)
- 13:30 → 14:00
  
  GW190814 secondary component as Neutron star with Hadron-Quark phase transition. 30m
  
  GW190814 secondary component as Neutron star with
  Hadron-Quark phase transition.
  Ishfaq Ahmad Rather
  ishfaqrather81@gmail.com
  Department of Physics, Aligarh Muslim University,
  Aligarh-202002, India.
  The recently observed gravitational wave event GW190814 has a secondary com-
  ponent with a mass in the range 2.50-2.67M , which lies in the mass gap region
  raising the question as whether it is a supermassive neutron stars or a light
  black hole. In this context, I study the properties of the Neutron star(NS) with
  Hadrons along with a Phase transition to Quark matter. The NS properties
  are calculated using the density-dependent relativistic mean-field model (DD-
  RMF) for the hadronic matter . The Quark matter is studied by employing
  the Vector-Enhanced Bag model (vBag). The phase transition properties of the
  mixed Equation of State (EoS) are studied using both Maxwell and Gibbs mech-
  anisms. The maximum mass of neutron star with the used DD-RMF parameter
  sets is found to be around 2.55M for pure hadronic phase and around 2M for
  hadron-quark mixed phase using both Gibbs and Maxwell construction. The
  tidal deformability for the hybrid EoS at 1.4M , Λ 1.4 , remains unchanged from
  the pure hadronic EoS with Maxwell construction, but decreases with the in-
  creasing neutron star mass for Gibbs construction. Thus while the pure hadron
  matter EoS satisfies the mass constraint from recently observed GW190814 data,
  the star matter properties for the hadron-quark phase transition satisfy the con-
  straints from the recent observations GW170817. Therefore, we cannot exclude
  the possibility of the secondary object in GW190814 as a neutron star composed
  of hadrons and quarks.
  
  Speaker: Ishfaq Rather (Aligarh Muslim University)
- 14:00 → 14:30
  
  BREAK 30m
- 14:30 → 16:00
  
  Chairperson: Rameez Ahmad Parra 1h 30m
- 14:30 → 15:00
  
  Neutrinos: Dirac or Majorana 30m
  
  Abstract
  Neutrinos: Dirac or Majorana
  Neelu Mahajan
  Goswami Ganesh Dutta S.D. College, Sector 32-C, Chandigarh, 160030, India
  email id: neelu.mahajan@ggdsd.ac.in
  
  To understand the origin of small neutrino mass, a question arises whether neutrinos are Dirac or Majorana particles? This is one of the most fundamental problems of the modern day neutrino physics. For this, we are considering bottom up approach i.e. to go for phenomenological models which are in tune with the latest precise data. Texture specific mass matrices have been phenomenologicaly analyzed for both Dirac and Majorana neutrinos. If neutrinos are Majorana particles, neutrinoless double beta decay would occur. We outline here how the present knowledge of mixing angles and mixing matrix elements could help to determine the nature of neutrinos. Along with this, several quantities such as neutrinoless double beta decay ⟨mee⟩, Jarlskog's rephasing invariant parameter in the leptonic sector Jl and the corresponding Dirac like CP violating phase have been calculated.
  
  Keywords
  
  Texture specific mass matrices, Dirac and Majorana Neutrinos, Neutrinoless double beta deacy , CP violation
  
  Speaker: Neelu Mahajan (Goswami Ganesh Dutta S.D. College, Sector 32-C, Chandigarh, 160030, India)
- 15:00 → 15:30
  
  Tracker Equation For Cosmological Tracking Solutions 30m
  
  Tracker Equation For Cosmological Tracking Solutions
  Zaheer Abbas
  Department of Physics
  Government Engineering College Jehanabad
  ABSTRCT
  The energy content of the universe may be supplemented by quintessence as
  a slowly- rolling scalar field. The understanding of tracker fields enables us to
  avoid the initial condition i.e. at the early age of the universe, match for the
  scalar and matter field which is very sensitive for the present observed ratio
  of their energy density nearly same today, as first one has very slow
  decreasing energy density than the last one. Quintessence [1] is considered
  to be missing energy component required to supplement the baryonic and
  matter density to achieve the critical density. [2, 3] This energy component
  has negative pressure with dynamical character and distributed in-
  homogeneously with slow time evolution. A form of quintessence called
  tracker fields has been introduced which avoids the coincidence problem [4].
  We have calculated tracker function  other than [5] and looking for its
  implication.
  
  Speaker: zaheer abbas (Department of Physics Government Engineering College Jehanabad)
- 15:30 → 16:00
  
  Particle Production and Semiclassical Validity in Two-mode Squeezed Vacuum state of an Oscillatory Quantize Scalar Field in FRW Universe 30m
  
  Abstract
  An approximate solution to the semiclassical Einstein equation is obtained in two-mode
  squeezed vacuum (TMSV (|ξ 2 >)) state formalism perturbatively and is found to obey the same
  power-law expansion as that of classical Einstein equation. However, the semiclassical gravity
  shows a significant difference that the Hubble constant does not oscillate, in contrast with the
  oscillatory behavior observed in classical gravity, for a specific choice of squeezing angle. This
  coherently oscillating scalar field in the TMSV state suffers from the phenomenon of
  nonclassical particle creation due to the quantum fluctuation of the scalar field in the
  expanding background cosmology. We also analyzed the validity of the semiclassical theory in
  TMSV state and finally examined the nonclassicality of the above state in the oscillatory phase
  of a massive scalar field.
  Keywords: Scalar Field, Two-mode Squeezed Vacuum State, FRW Universe, Semiclassical
  Approximation to gravity, quantum fluctuation, particle creation.
  
  Speaker: Meghna Rathore (MNIT)
- 16:00 → 16:30
  
  Discussion Session For Day-1 30m
- 16:30 → 17:20
  
  Concluding Remarks, Day-1 (Organizer) 50m
вторник, 12 января
- пн, 11 янв.
- вт, 12 янв.
- 11:20 → 11:30
  
  Session Opening Remarks (Organizer)-Day-2 10m
- 11:30 → 12:00
  
  CALCULATING LEPTONIC CP INVARIANCE FOR FRAMPTON-GLASHOW AND YANAGIDA (FGY) MODEL 30m
  
  In the present paper, I revisit the relationship between the weak basis invariants (WB) related to CP violation responsible for leptogenesis and CP violation relevant at low energy. To this end, for all the four experimental viable cases pertaining to Frampton-Glashow and Yanagida (FGY) model, I reconstruct the WB invariants in terms of left-handed Majorana neutrino mass matrix elements, and thus finding the necessary and sufficient condition for CP invariance at high energy. Further for all the viable cases, I have shown the explicit dependence of WB invariants on Dirac type and Majorana type CP violating phases. In the end, I discuss the implication of such interrelationships on leptogenesis.
  
  Speaker: Madan Singh (*Department of Physics, M. N. S Government College, Bhiwani, Haryana, 127021, India.)
- 11:30 → 13:30
  
  Chairperson: Zaheer Abbas 2h
- 12:00 → 12:30
  
  A Quest for Unique Texture in Quark Mass Matrices 30m
  
  A Quest for Unique Texture in Quark Mass Matrices
  Samandeep Sharma
  GGDSD College, Sector 32-C, Chandigarh
  Email: samandeep.sharma@ggdsd.ac.in
  Abstract: We start with the most general quark mass matrices within the framework of Standard Model and apply the ideas of ‘naturalness’ and ‘weak basis transformations’ within the texture zero approach. Our analysis leads us to an interesting conclusion, viz. a particular texture four zero structure seems to be the unique viable option for explaining the present quark mixing data.
  
  Speaker: samandeep Sharma (GGDSD College, Sector 32-C, Chandigarh)
- 12:30 → 13:00
  
  Mass Matrices And Sterile Neutrinos : an Overview 30m
  
  Mass Matrices And Sterile Neutrinos : an Overview
  
  Preeti, Neelu Mahajan, Samandeep Sharma
  GGDSD College, Sector 32-C, Chandigarh, India
  *corresponding author: dahiyapreetz1991@gmail.com
  
  Neutrino oscillation experiments have provided solid evidence that, in contrast to the prediction of the Standard Model (SM), neutrinos are massive and that their flavors change during propagation.Despite the victorious accomplishment of solar, atmospheric, reactor and accelerator neutrino experiments, there are experimental anomalies that cannot be explained within the standard three active neutrino framework. In particular, the possible presence of sterile neutrinos points towards non-standard neutrino physics. The issue of the LSND and MiniBooNE results has been around for some time, and is frequently interpreted as a hint towards the presence of one or two sterile neutrino states. To solve sterile neutrino problem, there can be so many approaches like hybrid textures, zero determinant, zero trace, seesaw mechanism, radiative mechanism but particularly we emphasize our work by using texture specific mass matrices. We prepare an overview of all the examination that hints beyond standard model. A brief summary of the past, present and future neutrino experiments are also presented.
  
  Keywords: Neutrino oscillations, anomalies, sterile neutrinos, hybrid texture, texture specific mass matrices.
  
  Speaker: preeti dahiya ( GGDSD College, Sector 32-C, Chandigarh, India)
- 13:00 → 13:30
  
  Information loss problem and possible solutions 30m
  
  The Information loss problem has engaged physicists over a long time now with varied points of
  view whethër information is lost when it enters the black holes or otherwise. Recent Proposals of
  AMPS, EP=EPR and other proposals are attempt to address the problem with renewed view points
  which conflate or complement some of earlier solutions. In this talk attempt would be made to
  address how the problem has evolved historically and logically and possible pointers towards its
  resolutions
  
  Speaker: Suhail Ahmad (Central university of Kashmir)
- 13:30 → 14:00
  
  Break-I 30m
- 14:00 → 15:30
  
  Chairperson: Saleem Yousuf 1h 30m
- 14:00 → 14:30
  
  Thermal Model Calculations for Hot and Dense Hadronic Matter Using Van der Waals Type Equation of State 30m
  
  We have provided a modified grand canonical ensemble formulation for a multi-component hadronic resonance gas system. We have considered the attractive as well as repulsive interaction among the constituent baryons (antibaryons) and obtained a van der Waals type equation of state. Using this formulation we have calculated several relative hadronic yields as well as nucleon (antinucleon) densities in the system. This approach is thermodynamically consistent. It is found that the particle ratios get significantly modified in the case of van der Waals interactions for a baryon rich system. In this approach the repulsive force is assumed to exist between pairs of two baryons and pairs of two antibaryons, while it is purely attractive between a baryon-antibaryon pair. The values of attractive and repulsive parameters have been obtained from the previous studies which are required to reproduce the ground state properties of nuclear matter. We have also studied the effect of the variation of these parameters on our results.
  
  Speaker: Rameez Ahmad Parra (Department of Physics, Jamia Millia Islamia, New Delhi)
- 14:30 → 15:00
  
  NJL Model and QCD phase transition 30m
  
  Quantum Chromodynamics (QCD) Matter Under Nambu-
  Jona–Lasinio (NJL) Model and Phase Transition Temperature
  Quantum Chromodynamics (QCD) is one of the fundamental and ultimate theory of strong
  interactions. It describes the interaction of quarks through their colour quantum numbers
  called colour charges. The mediating particles are gluons which are called gauge bosons with
  spin-zero particles and are massless. QCD deals with two extreme forms of matter in two
  phases. One heated to trillion degrees called QCD quenched and other maintained at zero
  temperature labelled as QCD vacuum. Low energy QCD deals with systems of light quarks
  where energy and momentum scales are smaller than 1 GeV mass energy gap observed in
  hadron spectrum. Right after the Big Bang, quarks and leptons were mass-less. When the
  temperature of the universe dropped below 100 GeV, the spontaneous breaking of the
  electroweak symmetry resulted in Higgs particles condensing in the vacuum, this "Higgs
  mechanism” gave mass to leptons and quarks. With further cooling, once the temperature
  dropped below 100 MeV, the quarks and gluons became confined in protons and neutrons.
  The QCD vacuum was modified by the spontaneous breaking of chiral symmetry giving the u
  (up) and d (down) quarks in the nucleon an "effective" mass of some 300 MeV. This
  constituent mass of the quarks is different from their current mass. The Higgs mechanism is
  only responsible for ~2% of the mass of the nucleon, QCD dynamically generates the
  remaining 98% of the mass of ordinary matter. At low energy scale which is also relevant for
  conventional nuclear physics, QCD exhibits two important features. One is called the color
  confinement and other is approximate chiral symmetry and its spontaneous breaking. In case
  of physical quark masses neither chiral condensate vanishes nor chiral susceptibility diverges
  at the pseudo-critical temperature. In spite of this these quantities retain a reminiscent
  behaviour of them corresponding to one in the chiral limit. In particular the chiral
  susceptibility has a peaked structure as a function of temperature and it is customary to define
  critical temperature as the temperature for which susceptibility reaches its peak.
  Hamid Nanda (Jamia Millia Islamia New Delhi)
  PhD in Theoretical High Energy Nuclear Physics
  
  Speaker: Hamid nanda (Jamia Millia Islamia)
- 15:00 → 15:30
  
  Bulk viscosity near QCD phase transition and spontaneous symmetry breaking effect 30m
  
  Bulk viscosity near QCD phase transition and spontaneous
  symmetry breaking effect
  Waseem Bashir 1 , Hamid Nanda 2 , Rameez Ahmad Parra
  2,3
  3
  1
  Department of Physics, GDC, Budgam, Kashmir -191111, India.
  Department of Physics, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi-110025,
  India.
  Abstract
  We evaluate the effect of spontaneous symmetry breaking on the transport properties of
  strongly interacting fermionic matter near QCD phase transition. We develop a field theoreti-
  cal model using dynamic quasi-particle description for fermions which are allowed to interact with
  Nambu-Goldstone modes via Yukawa type coupling. We solve this model at Wilson-Fisher fixed
  point and evaluate perturbative expression for bulk and shear viscosity of this medium. To analyze
  the behaviour of these transport coefficients near QCD phase transition region we use scaling anal-
  ysis. It is found that Nambu-Goldstone modes can result in singular behaviour of bulk viscosity
  to entropy ratio ζ/s in the Z(2) universality class.
  
  Speaker: Waseem Bashir (GDC,BUDGAM)
- 15:30 → 15:45
  
  Break-II 15m
- 15:45 → 18:15
  
  Chairperson: Hamid Nanda 2h 30m
- 15:45 → 16:15
  
  Magnetotransport and magnetocaloric effect in Gd3In 30m
  
  The electrical transport and magnetic properties of the rare-earth based binary intermetallic compound Gd3In are reported. The sample has tetragonal crystal structure with space group P4/mmm. At TC = 190 K, the sample orders ferromagnetically, however, a recentrant antiferromagnetic-like state is observed below TN = 100 K where a sharp drop in magnetization is observed. Clear signature of meta-magnetic transition is present in the isothermal variation of magnetization for an applied field of HC= 11.5 kOe at 2 K. Due to the presence of field induced transition, we have calculated the magneto-caloric effect (MCE) around the magnetic transitions using our magnetization data, which turns out to be quite eventful. MCE, expressed in terms of change in entropy (S) due to the change in magnetic field (), is found to be negative around TC with a maximum value of S= -5.3 Jkg-1K-1 for H = 50 kOe. On the other hand, it is positive up to H = 10 kOe around TN, and turns negative for higher values of H with a maximum value of S = -2.6 Jkg-1K-1. This is clearly due to the metamagnetic transition observed around 11.5 kOe. In the temperature variation of electrical resistivity, we observe clear signatures of magnetic transitions occurring at TC and TN, and the sample shows negative magnetoresistance throughout the temperature range (6-300 K) with a value of -12% at around 90 K for H = 50 kOe.
  
  Speaker: Suman Mondal (Indian Association for the Cultivation of Science)
- 16:15 → 16:45
  
  Study of Spin Polarization, Fermi Surface, Band Structure and Thermophysical Properties of Sc 2 ZrSi Inverse Heusler 30m
  
  Study of Spin Polarization, Fermi Surface, Band Structure and
  Thermophysical Properties of Sc 2 ZrSi Inverse Heusler
  Dr. Saleem Yousuf and Dr. Waseem Bashir
  Department of Physics, Govt. Degree College Budgam, J&K, India
  E-mail: sosfizix@gmail.com a , nguyenphys79@gmail.com b
  Abstract
  The origin of half-metallicity, spin behavior, thermoelectrics and thermodynamics of inverse full-
  Heusler Sc 2 ZrSi alloy are explored using the by density functional theory. The structural
  characterization using the calculation of ground state energy confirm the XA-type structure of
  Heusler having similarity with Hg 2 CuTi-type structure that has F-43m space group
  symmetries.Band structure and occupation of density of states at the Fermi level determine its
  semiconducting nature and an indirect band gap of 0.52 eV.Semi-classical Boltzmann transport
  theory is used to determine various thermoelectric coefficients to infer about its capability for
  waste heat recovery systems.The Seebeck coefficient and electrical conductivity measurements
  also convey semiconducting band structure over all chemical potentials.The thermoelectric
  efficiency measured through zT calculation with a value of 0.5 at 1200 K, convey the material can
  be used as thermoelectric material.The thermodynamics using Debye temperature, specific heat
  and thermal expansion coefficient define low anharmonicity and low lattice thermal conductivity
  of the material. The overall thermophysical assets suggest the material has a potential stand for
  spintronics and thermoelectric applications.
  
  Speaker: saleem yousuf (Department of Physics, GDC,Budgam)
- 16:45 → 17:15
  
  Band gap engineering of barium stannate (BaSnO3) perovskite oxide by Mn-doping: Theory and experiment 30m
  
  Band gap engineering of barium titanate (BaSnO3) perovskite oxide by Mn-doping: Theory and experiment
  
  Ishtihadah Islam1, Shakeel Ahmad Khandy2, Azher Majid Siddiqui1, Aurangzeb Khurram Hafiz3
  1Department of Physics, Jamia Millia Islamia, New Delhi 110025
  2Department of Physics, National Taiwan University, Taipei, Taiwan
  3Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi, 110025, Indiaishtihadahislam@gmail.com
  
  ABSTRACT
  Nanocrystalline BaSn1-xMnxO3 (x = 0.0 - 0.3) nanostructures were synthesized by solid state reaction route. Heavy Mn-doping upto 30% in powdered BaSnO3 is accomplished to investigate the optical properties, electronic structure and magnetic properties of the synthesized samples. From XRD analysis and Transmission electron micrographs (TEM), nanoscale cubic structures are observed within (~50 nm) dimensions. Band gap transition from 3.2 eV in pure BaSnO3 to 2.6 eV in Mn-doped samples is coherent with DFT calculations. So, an ultraviolet active material is reduced to absorb the visible light via band gap engineering as achieved by proportional Mn-doping in the parent material. An increase in Mn-content leads to the decrease in band gap of parent material up to certain limits (20% doping only). The origin of these reduced values can be argued from the unpaired Mn-3d5 electronic states which induces the defect states below the conduction band minima near the Fermi level. The more, defect states present in a sample, the smaller will be its band gap. However, after certain doping (optimal 20% in present case), the distortion effects in the crystal structure does not allow further alteration of the band gap but induce magnetism only.
  
  Keywords: BaSnO3; Nanoparticles, XRD, Transition metals, Optical properties
  
  Speaker: Ishtihadah Islam (Jamia Millia Islamia)
- 17:15 → 17:35
  
  Fano factor & Conductivity in the confined region of the potential well 20m
  
  Transport properties in the confied region of the potential well have been calculated. It has been
  shown here that edge states or surface states occur in this particluar system. Tight binding Green
  function along with Bloch’s theorem used here to calculate the transport properties. Transmission
  occurs in the form of plateus and shows the metallic behavior. Fano factor has been calculated in
  this system. Conductivity is also calculated for this particular system
  
  Speaker: Dr Surendra pratap (Department of Physics, Central university of Himachal Pradesh)
- 17:35 → 17:55
  
  Polymer Nanocomposite Electrolyte Films For Energy Storage/Conversion devices 20m
  
  The conducting polymer nanocomposite electrolytes free standing thin films are used in
  technologically interesting due to the wide variety of applications Such as ; batteries, solar
  cell , electrochemical sensors and supercapacitors etc [1-2]. The conducting polymer
  nanocomposite electrolytes thin films have been prepared by standard solution cast technique.
  The prepared free standing films were characterized by different tool of characterizations
  technique such as EIS, FTIR, and SEM. The basic requirement of polymer nanocomposite
  electrolyte films are high ionic conductivity is approx.of order 10
  -2 to 10-4 S/cm-1 .FTIR spectroscopy is an important technique for the analysis of bond formation in the polymer structure, since it provides information about the complexation of blend polymer with sodium ion and interaction in the prepared films [3-4]. The surface morphology of polymer nanocomposite electrolyte films by scanning electron microscopy (SEM). The cyclic
  Voltammetry of polymer nanocomposite electrolytes films were calculated by electrochemical stability window (ESW) by using an electrochemical analyzer.
  
  Speaker: Mohammad Sadiq (, Department of Physics, A R S D College, University of Delhi, India)
- 17:55 → 18:15
  
  Recent Advances and Challenges in Compton Scattering from Heavier Metals 20m
  
  As Compton scattering is a powerful technique for the determination of electronic structure of ma-
  terials, with the advent of high resolution in spectrometers, in the past two decades. Several mea-
  surements on single crystal materials have been carried out to determine electron momentum distri-
  bution using this technique. In this paper, I present a review of such studies on heavier metals and
  emphasis is made towards the challenges encountered.
  Key words: Compton scattering, Electron momentum distribution, Heavy metals, High resolution,
  Single Crystals
  
  Speaker: Dr M.D Sharma (Department of Physics, Govt. Dunger College, Bikaner, Rajasthan )
- 18:15 → 18:25
  
  Discussions Session For Day-2 10m
- 18:25 → 18:55
  
  Feedback (Participants) 30m
- 18:55 → 19:45
  
  Concluding Remarks (Organizers) 50m

International WORKSHOP on ``Emerging trends in High Energy and Condensed matter Physics"

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