The Search for the Quantum Spin Liquid in Kagome Antiferromagnets

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2019,（5）
• 页码范围: 1-2
• 页数: 2页
• 语种: 英文
• DOI: 10.1088/0256-307X/36/5/050101

摘要

A quantum spin liquid (QSL) is an exotic quantum ground state that does not break conventional symmetries and where the spins in the system remain dynamic down to zero temperature.Unlike a trivial paramagnetic state,it features long-range quantum entanglement and supports fractionalized excitations.[1] Since Anderson's seminal proposal in 1973,[2] QSLs have been vigorously studied both theoretically and experimentally.Frustrated magnets have been the most fruitful playground for the QSL research.[3] These are materials with competing exchange interactions,which typically arise from triangle-based lattices,leading to macroscopic classical ground state degeneracy.This type of frustration is a key ingredient in discovering quantum disordered ground states.