Home | Contact | Sitemap | 中文 | CAS
Search: 
Home │  About Us │  Research │  People │  International Cooperation │  Education & Training │  Papers
  Seminar
Conference
Forum on FS
Colloquium
Seminar
Lunch Seminar
Coffee Time
Advanced Course
KITPC Activities
Other activities
  Location: Home >  Research Activities >  Seminar
In-commensurate Skyrmion crystal phases, devil staircases and multi-fractals in spin orbital coupled systems
2017-05-17     Text Size:  A

Institute of Theoretical Physics

Chinese Academy of Sciences

 Key Laboratory of Theoretical Physics

Seminar

Title

题目

In-commensurate Skyrmion crystal phases, devil staircases and multi-fractals in spin orbital coupled systems

Speaker

报告人

Jinwu Ye

Affiliation

所在单位

首都师范大学, Mississippi State university

Date

日期

11:00am, Wednesday, May 17, 2017

Venue

地点

Conference Hall 322, ITP
 

Abstract

摘要

 In this talk, we study the system of strongly interacting spinor bosons or fermions in a square lattice subject to any of the linear combinations of the Rashba and Dresselhaus spin-orbit coupling (SOC). We map out its global phase diagram which displays rich and novel quantum phases and phase transitions in the whole 2 dimensional SOC parameter space. They include masses generated from "order from quantum disorder " mechanism, collinear spin-orbital coupled magnetic phase, quantum commensurate ( C ) and In-commensurate ( IC ) non-coplanar Skyrmion crystal phases, stripe co-planar ( spiral ) C and IC phases, quantum Lifshitz C-IC transitions, metastable states, hysteresis, topological rational and irrational winding numbers, incomplete and complete devil staircases, Cantor sets, multi-fractals, etc. Various perspectives and possible connections with topological spin liquids in geometrically frustrated lattices, or Kitaev model or Sachdev-Ye-Kitaev model are discussed. Implications on current or near future cold atom systems and on so called Kitaev materials with SOC are outlined.

Contact person

所内联系人

Chushun Tian
  Appendix:
       Address: No. 55 Zhong Guan Cun East Road, Haidian District, Beijing 100190, P. R. China
Copyright ? Institute of Theoretical Physics, Chinese Academy of Sciences, All Rights Reserved