Interplay of Kitaev Interaction and Off-Diagonal Exchanges:Exotic Phases and Quantum Phase Diagrams  

作　　者：Qiang Luo Jize Zhao Xiaoqun Wang 罗强;赵继泽;王孝群(College of Physics,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China;Key Laboratory of Aerospace Information Materials and Physics(NUAA),MIIT,Nanjing 211106,China;School of Physical Science and Technology&Key Laboratory of Quantum Theory and Applications of MoE,Lanzhou University,Lanzhou 730000,China;Lanzhou Center for Theoretical Physics,Key Laboratory of Theoretical Physics of Gansu Province,Lanzhou University,Lanzhou 730000,China;School of Physics and Institute for Advanced Study in Physics,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]College of Physics,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China [2]Key Laboratory of Aerospace Information Materials and Physics(NUAA),MIIT,Nanjing 211106,China [3]School of Physical Science and Technology&Key Laboratory of Quantum Theory and Applications of MoE,Lanzhou University,Lanzhou 730000,China [4]Lanzhou Center for Theoretical Physics,Key Laboratory of Theoretical Physics of Gansu Province,Lanzhou University,Lanzhou 730000,China [5]School of Physics and Institute for Advanced Study in Physics,Zhejiang University,Hangzhou 310058,China

出　　处：《Chinese Physics Letters》2025年第2期229-238,共10页中国物理快报(英文版)

基　　金：supported by the National Program on Key Research Projects(Grant No.MOST2022YFA1402700);the National Natural Science Foundation of China(Grant Nos.12304176,12274187,12247183,and 12247101);the Natural Science Foundation of Jiangsu Province(Grant No.BK20220876);partially supported by the High-Performance Computing Platform of Nanjing University of Aeronautics and Astronautics。

摘　　要：Aligning with the ongoing search for quantum spin liquids(QSLs),identifying QSLs in Kitaev magnets has attracted significant research interest during the past decade.Nevertheless,it remains a significant challenge.One of the major difficulties is that Kitaev QSL is typically fragile to competing interactions such as off-diagonal exchanges,which are ubiquitous in real materials owing to spin-orbit coupling and crystal-field effects.This,in turn,generates many intriguing field-induced novel phases and the thermal Hall effect.In this review,we focus on the interplay between the Kitaev interaction and off-diagonal Γ and Γ′exchange from a numerical perspective.The review discusses certain representative exotic phases such as𝛤spin liquid,nematic ferromagnet,spin-flop phase,and distinct chiral spin states with spontaneous time-reversal symmetry breaking.It also presents quantum phase diagrams of anisotropic Kitaev-Γ chains that exhibit kaleidoscopy for both ordered and disordered phases.

关 键 词：effect. DIAGONAL quantum 

分 类 号：O41[理学—理论物理]