Muon Spin Relaxation Evidence for the U(1) Quantum Spin-Liquid Ground State in the Triangular Antiferromagnet YbMgGaO4

被引：74

作者：

Li, Yuesheng ^{[1
,2
]}

Adroja, Devashibhai ^{[3
,4
]}

Biswas, Pabitra K. ^{[3
]}

Baker, Peter J. ^{[3
]}

Zhang, Qian ^{[1
]}

Liu, Juanjuan ^{[1
]}

Tsirlin, Alexander A. ^{[2
]}

Gegenwart, Philipp ^{[2
]}

Zhang, Qingming ^{[1
,5
]}

机构：

[1] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China

[2] Univ Augsburg, Ctr Elect Correlat & Magnetism, Expt Phys 6, D-86159 Augsburg, Germany

[3] STFC Rutherford Appleton Lab, ISIS Pulsed Neutron & Muon Source, Harwell Campus, Didcot OX11 0QX, Oxon, England

[4] Univ Johannesburg, Dept Phys, Highly Correlated Matter Res Grp, POB 524, ZA-2006 Auckland Pk, South Africa

[5] Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 117卷 / 09期

关键词：

VALENCE BOND STATE; HEISENBERG-ANTIFERROMAGNET; LATTICE; DYNAMICS; ORDER; GLASSES; MAGNET;

D O I：

10.1103/PhysRevLett.117.097201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Muon spin relaxation (mu SR) experiments on single crystals of the structurally perfect triangular antiferromagnet YbMgGaO4 indicate the absence of both static long-range magnetic order and spin freezing down to 0.048 K in a zero field. Below 0.4 K, the mu(+) spin relaxation rates, which are proportional to the dynamic correlation function of the Yb3+ spins, exhibit temperature-independent plateaus. All these mu SR results unequivocally support the formation of a gapless U(1) quantum spin liquid ground state in the triangular antiferromagnet YbMgGaO4.

引用

页数：6

共 50 条

[1] Gapless quantum spin liquid ground state in the two-dimensional spin-1/2 triangular antiferromagnet YbMgGaO4
Li, Yuesheng
Liao, Haijun
Zhang, Zhen
Li, Shiyan
Jin, Feng
Ling, Langsheng
Zhang, Lei
Zou, Youming
Pi, Li
Yang, Zhaorong
Wang, Junfeng
Wu, Zhonghua
Zhang, Qingming
[J]. SCIENTIFIC REPORTS, 2015, 5
[2] Gapless quantum spin liquid ground state in the two-dimensional spin-1/2 triangular antiferromagnet YbMgGaO4
Yuesheng Li
Haijun Liao
Zhen Zhang
Shiyan Li
Feng Jin
Langsheng Ling
Lei Zhang
Youming Zou
Li Pi
Zhaorong Yang
Junfeng Wang
Zhonghua Wu
Qingming Zhang
[J]. Scientific Reports, 5
[3] Persistent spin dynamics in the pressurized spin-liquid candidate YbMgGaO4
Majumder, Mayukh
Simutis, Gediminas
Collings, Ines E.
Orain, Jean-Christophe
Dey, Tusharkanti
Li, Yuesheng
Gegenwart, Philipp
Tsirlin, Alexander A.
[J]. PHYSICAL REVIEW RESEARCH, 2020, 2 (02):
[4] Field evolution of the spin-liquid candidate YbMgGaO4
Bachus, Sebastian
Iakovlev, Ilia A.
Li, Yuesheng
Woerl, Andreas
Tokiwa, Yoshifumi
Ling, Langsheng
Zhang, Qingming
Mazurenko, Vladimir V.
Gegenwart, Philipp
Tsirlin, Alexander A.
[J]. PHYSICAL REVIEW B, 2020, 102 (10)
[5] YbMgGaO4: A Triangular-Lattice Quantum Spin Liquid Candidate
Li, Yuesheng
[J]. ADVANCED QUANTUM TECHNOLOGIES, 2019, 2 (12)
[6] Absence of Magnetic Thermal Conductivity in the Quantum Spin-Liquid Candidate YbMgGaO4
Xu, Y.
Zhang, J.
Li, Y. S.
Yu, Y. J.
Hong, X. C.
Zhang, Q. M.
Li, S. Y.
[J]. PHYSICAL REVIEW LETTERS, 2016, 117 (26)
[7] Crystalline Electric-Field Randomness in the Triangular Lattice Spin-Liquid YbMgGaO4
Li, Yuesheng
Adroja, Devashibhai
Bewley, Robert I.
Voneshen, David
Tsirlin, Alexander A.
Gegenwart, Philipp
Zhang, Qingming
[J]. PHYSICAL REVIEW LETTERS, 2017, 118 (10)
[8] Spinon excitations in a triangular-lattice quantum-spin-liquid YbMgGaO4
[J]. Science Foundation in China, 2017, (01) : 8 - 8
[9] Hierarchy of Exchange Interactions in the Triangular-Lattice Spin Liquid YbMgGaO4
Zhang, Xinshu
Mahmood, Fahad
Daum, Marcus
Dun, Zhiling
Paddison, Joseph A. M.
Laurita, Nicholas J.
Hong, Tao
Zhou, Haidong
Armitage, N. P.
Mourigal, Martin
[J]. PHYSICAL REVIEW X, 2018, 8 (03):
[10] Evidence for a gapped spin-liquid ground state in a kagome Heisenberg antiferromagnet
Fu, Mingxuan
Imai, Takashi
Han, Tian-Heng
Lee, Young S.
[J]. SCIENCE, 2015, 350 (6261) : 655 - 658

← 1 2 3 4 5 →