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

Yuesheng Li; Devashibhai Adroja; Pabitra K. Biswas; Peter J. Baker; Qian Zhang; Juanjuan Liu; Alexander A. Tsirlin; Philipp Gegenwart; Qingming Zhang

doi:10.1103/PhysRevLett.117.097201

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

Yuesheng Li
, Devashibhai Adroja
, Pabitra K. Biswas
, Peter J. Baker
, Qian Zhang
, Juanjuan Liu
, Alexander A. Tsirlin
, Philipp Gegenwart
, Qingming Zhang

Physics

Research output: Contribution to journal › Article › peer-review

192 Citations (Scopus)

Abstract

Muon spin relaxation (μSR) 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 μ+ spin relaxation rates, which are proportional to the dynamic correlation function of the Yb3+ spins, exhibit temperature-independent plateaus. All these μSR results unequivocally support the formation of a gapless U(1) quantum spin liquid ground state in the triangular antiferromagnet YbMgGaO4.

Original language	English
Article number	097201
Journal	Physical Review Letters
Volume	117
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.117.097201
Publication status	Published - 23 Aug 2016

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.117.097201

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

abstract = "Muon spin relaxation (μSR) 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 μ+ spin relaxation rates, which are proportional to the dynamic correlation function of the Yb3+ spins, exhibit temperature-independent plateaus. All these μSR results unequivocally support the formation of a gapless U(1) quantum spin liquid ground state in the triangular antiferromagnet YbMgGaO4.",

author = "Yuesheng Li and Devashibhai Adroja and Biswas, \{Pabitra K.\} and Baker, \{Peter J.\} and Qian Zhang and Juanjuan Liu and Tsirlin, \{Alexander A.\} and Philipp Gegenwart and Qingming Zhang",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = aug,

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doi = "10.1103/PhysRevLett.117.097201",

language = "English",

volume = "117",

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T1 - Muon Spin Relaxation Evidence for the U(1) Quantum Spin-Liquid Ground State in the Triangular Antiferromagnet YbMgGaO4

AU - Li, Yuesheng

AU - Adroja, Devashibhai

AU - Biswas, Pabitra K.

AU - Baker, Peter J.

AU - Zhang, Qian

AU - Liu, Juanjuan

AU - Tsirlin, Alexander A.

AU - Gegenwart, Philipp

AU - Zhang, Qingming

PY - 2016/8/23

Y1 - 2016/8/23

N2 - Muon spin relaxation (μSR) 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 μ+ spin relaxation rates, which are proportional to the dynamic correlation function of the Yb3+ spins, exhibit temperature-independent plateaus. All these μSR results unequivocally support the formation of a gapless U(1) quantum spin liquid ground state in the triangular antiferromagnet YbMgGaO4.

AB - Muon spin relaxation (μSR) 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 μ+ spin relaxation rates, which are proportional to the dynamic correlation function of the Yb3+ spins, exhibit temperature-independent plateaus. All these μSR results unequivocally support the formation of a gapless U(1) quantum spin liquid ground state in the triangular antiferromagnet YbMgGaO4.

UR - https://www.scopus.com/pages/publications/84988521312

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DO - 10.1103/PhysRevLett.117.097201

M3 - Article

AN - SCOPUS:84988521312

SN - 0031-9007

VL - 117

JO - Physical Review Letters

JF - Physical Review Letters

IS - 9

M1 - 097201

ER -

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

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