Fluctuating magnetic droplets immersed in a sea of quantum spin liquid
作者机构：State Key Laboratory of Surface Phys icsand Department of PhysicsFudan UniversityShanghai 200433China CAS Key Laboratory of Stronglycoupled Quantum Matter PhysicsDepartment of PhysicsUniversity of Science and Technology of ChinaHefeiAnhui 230026China Department of Physicsthe University of Hong KongHong KongChina ISIS Pulsed Neutron and Muon SourceSTFC Rutherford Appleton LaboratoryHarwell CampusDidcotOxfordshire 0X110QXUK Collaborative Innovation Center of Advanced Micr ostructuresNanjing 210093China CAS Center for Excellence in Superconducting Electronics(CENSE)Shanghai 200050China Institute of Physics and Beijing National Laboratory for Condensed Matter PhysicsChinese Academy of SciencesBeijing 100190China Songshan Lake Materials LaboratoryDongguanGuangdong 523808China Kavli Institute for Theoretical Sciences and CAS Center for Excellence in Topological Quantum ComputationUniversity of Chinese Academy of SciencesBeijing 100190China Shanghai Research Center for Quantum SciencesShanghai 201315China
出 版 物：《The Innovation》 (创新（英文）)
年 卷 期：2023年第4卷第5期
页 面：33-40页
核心收录：
学科分类：07[理学] 0703[理学-化学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学]
基 金：National Key R&D Program of China(Grant No.2022YFA1402203) National Natural Science Foundation of China of China(Grant No.12034004,No.11774061,and No.11774306) Shanghai Municipal Science and Technology(Major Project Grant No.2019SHZDZX01,No.20ZR1405300,and No.23ZR1404500) Strategic Priority Research Program of Chinese Academy of Sciences(No.XDB28000000) Innovation program for Quantum Science and Technology(Grant No.2021ZD0302500)
摘 要：The search of quantum spin liquid(QSL),an exotic magnetic state with strongly fluctuating and highly entangled spins down to zero temperature,is a main theme in current condensed matter ***,there is no smoking gun evidence for deconfined spinons in any QSL candidate so *** disorders and competing exchange interactions may prevent the formation of an ideal QSL state on frustrated spin *** we report comprehensive and systematic measurements of the magnetic susceptibility,ultralow-temperature specific heat,muon spin relaxation(μSR),nuclear magnetic resonance(NMR),and thermal conductivity for NaYbSe2 single crystals,in which Yb3+ions with effective spin-1/2 form a perfect triangular *** these complementary techniques find no evidence of long-range magnetic order down to their respective base ***,specific heat,μSR,and NMR measurements suggest the coexistence of quasi-static and dynamic spins in *** scattering from these quasi-static spins may cause the absence of magnetic thermal ***,we propose a scenario of fluctuating ferrimagnetic droplets immersed in a sea of *** may be quite common on the way pursuing an ideal QSL,and provides a brand new platform to study how a QSL state survives impurities and coexists with other magnetically ordered states.
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