Program

The 2nd Asia Pacific Workshop on Quantum Magnetism


ORGANIZERS: Subhro Bhattacharjee, Gang Chen, Zenji Hiroi, Ying-Jer Kao, SungBin Lee, Arnab Sen and Nic Shannon

DATE: 29 November 2018 to 07 December 2018

VENUE: Ramanujan Lecture Hall, ICTS Bangalore


Frustrated quantum magnets provide a rich playground for interplay of quantum fluctuations and competing interactions and hence provide important theoretical and experimental settings to explore unconventional phases of condensed matter including those with subtle signatures of many-body quantum entanglement. The developments in the field is a direct outcome of successful exchange of ideas between physics and material sciences and benefits spectacular progress in our understanding of controlled synthesis of materials with interesting properties many of which have promising technological applications.

The program, second of its kind, aims to bring together physicists, chemists and material scientists working on various aspects of magnetism in the Asia-Pacific region in particular to exchange results on the recent developments in different areas of quantum magnetism as well as discuss new ideas at the frontiers of both theoretical as well as experimental research in the field. It also aims to provide a platform for students and interested researchers to get exposed to the frontier areas of research in quantum magnetism.


The particular topics of interest for the upcoming meeting are:

1.Synthesis and characterisation of novel two and three dimensional magnetic materials.
2.Glassy physics in magnets.
3.Numerical studies of spin systems.
4.Dynamics in magnetic systems.
5.Long range entanglement and quantum paramagnets.
6.Spin-orbit coupled magnets.


This program is also partially supported by Asia Pacific Center for Theoretical Physics (APCTP).

CONTACT US: apfm2018@icts.res.in

PROGRAM LINK: [ Ссылка ]

Table of Contents (powered by [ Ссылка ])
0:00:00 Realization of Spin-Orbital Liquid State in Iridates
0:00:53 Electronic Structure of Strongly Correlated Systems
0:02:04 Electronic Structure of 5d Oxides
0:03:11 Emergent Phases:
0:05:29 Interplay of competing parameters in 5d transition metal oxides:
0:08:21 Emergent Magnetic Phases -Quantum Spin Liquids
0:09:07 Experimental Signature of QSL
0:10:10 Spin-Orbit Coupling Spin Liquids
0:12:11 "Zoo" of Iridates:
0:16:20 What about Iridates with other fillings?
0:17:29 Electronic Structure of the d5 systems: Ba3IrTi2O9, Ba3Tilr2O9
0:18:01 Structure of Ba3IrTi2O9
0:19:19 Electronic Structure of Ba3IrTi2O9 ( Ir d5)
0:20:52 Identification of the order parameter that breaks TR
0:22:15 Spin Model for Ba3IrTi2O9:
0:24:43 Structure of Ba3Tilr2O9:
0:26:21 Magnetism in Ba3Tilr2O9:
0:27:56 Spin Orbital Liquid State in Ba3 ZnIr2O9
0:28:28 Collaboration
0:28:52 Ba3ZnIr2O9
0:31:06 A single site d4 system
0:31:35 The singlet-triplet splitting is essentially dictated by SOC(lambda) which may be comparable to the super-exchange scale leading to magnetic condensation of these Van-vleck excitons !
0:32:25 Electronic Structure with and without SOC
0:33:22 d4 Magnetism without SOC & d4 Magnetism with SOC
0:35:21 Nature of magnetism with SOC (t ~ 230meV)
0:35:51 Mean-Field Theory & Magnetism
0:36:03 Spin-Orbital Singlets in a frustrated lattice
0:36:45 Quantum spin orbital liquid
0:37:09 Route to Realize Jeff = 0 state in Iridates
0:37:37 Magnetism in d4 based double perovskite Iridates
0:37:58 Is it really the effect of crystal field splitting?
0:39:00 Recent Mu SR results
0:40:46 RIXS Spectra
0:40:58 SOC is drastically renormalized in d4 systems:
0:42:16 Summary
0:42:30 Q&A

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