Spin-Glass Ground State in a Triangular-Lattice Compound YbZnGaO4

Zhen Ma; Jinghui Wang; Zhao Yang Dong; Jun Zhang; Shichao Li; Shu Han Zheng; Yunjie Yu; Wei Wang; Liqiang Che; Kejing Ran; Song Bao; Zhengwei Cai; P. Čermák; A. Schneidewind; S. Yano; J. S. Gardner; Xin Lu; Shun Li Yu; Jun Ming Liu; Shiyan Li; Jian Xin Li; Jinsheng Wen

doi:10.1103/PhysRevLett.120.087201

Spin-Glass Ground State in a Triangular-Lattice Compound YbZnGaO4

Zhen Ma, Jinghui Wang, Zhao Yang Dong, Jun Zhang, Shichao Li, Shu Han Zheng, Yunjie Yu, Wei Wang, Liqiang Che, Kejing Ran, Song Bao, Zhengwei Cai, P. Čermák, A. Schneidewind, S. Yano, J. S. Gardner, Xin Lu, Shun Li Yu, Jun Ming Liu, Shiyan LiJian Xin Li, Jinsheng Wen

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

135 Scopus citations

Abstract

We report on comprehensive results identifying the ground state of a triangular-lattice structured YbZnGaO4 as a spin glass, including no long-range magnetic order, prominent broad excitation continua, and the absence of magnetic thermal conductivity. More crucially, from the ultralowerature ac susceptibility measurements, we unambiguously observe frequency-dependent peaks around 0.1 K, indicating the spin-glass ground state. We suggest this conclusion holds also for its sister compound YbMgGaO4, which is confirmed by the observation of spin freezing at low temperatures. We consider disorder and frustration to be the main driving force for the spin-glass phase.

Original language	English
Article number	087201
Journal	Physical Review Letters
Volume	120
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.120.087201
State	Published - Feb 22 2018
Externally published	Yes

Funding

We acknowledge the Applications Group at Quantum Design for measuring the ac susceptibility. We thank Fengqi Song and Haijun Bu for help in measuring the high-field magnetization. We are grateful for stimulating discussions with Jia-Wei Mei, Shao-Chun Li, Weiqiang Yu, Lei Shu, D. Adroja, Guangyong Xu, and J. M. Tranquada. The work was supported by the National Natural Science Foundation of China with Grants No. 11374143, No. 11674157, No. 11774152, No. 11374138, No. 11674158, No. 11374257, and No. U1630248, and by the National Key Projects for Research & Development of the Ministry of Science and Technology of China with Grants No. 2016YFA0300401, No. 2016YFA0300101, and No. 2016YFA0300503.

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10.1103/PhysRevLett.120.087201

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Ma, Z., Wang, J., Dong, Z. Y., Zhang, J., Li, S., Zheng, S. H., Yu, Y., Wang, W., Che, L., Ran, K., Bao, S., Cai, Z., Čermák, P., Schneidewind, A., Yano, S., Gardner, J. S., Lu, X., Yu, S. L., Liu, J. M., ... Wen, J. (2018). Spin-Glass Ground State in a Triangular-Lattice Compound YbZnGaO4. Physical Review Letters, 120(8), Article 087201. https://doi.org/10.1103/PhysRevLett.120.087201

@article{e2391384803c4d5582f85cff1bde781b,

title = "Spin-Glass Ground State in a Triangular-Lattice Compound YbZnGaO4",

abstract = "We report on comprehensive results identifying the ground state of a triangular-lattice structured YbZnGaO4 as a spin glass, including no long-range magnetic order, prominent broad excitation continua, and the absence of magnetic thermal conductivity. More crucially, from the ultralowerature ac susceptibility measurements, we unambiguously observe frequency-dependent peaks around 0.1 K, indicating the spin-glass ground state. We suggest this conclusion holds also for its sister compound YbMgGaO4, which is confirmed by the observation of spin freezing at low temperatures. We consider disorder and frustration to be the main driving force for the spin-glass phase.",

author = "Zhen Ma and Jinghui Wang and Dong, {Zhao Yang} and Jun Zhang and Shichao Li and Zheng, {Shu Han} and Yunjie Yu and Wei Wang and Liqiang Che and Kejing Ran and Song Bao and Zhengwei Cai and P. {\v C}erm{\'a}k and A. Schneidewind and S. Yano and Gardner, {J. S.} and Xin Lu and Yu, {Shun Li} and Liu, {Jun Ming} and Shiyan Li and Li, {Jian Xin} and Jinsheng Wen",

note = "Publisher Copyright: {\textcopyright} 2018 American Physical Society.",

year = "2018",

month = feb,

day = "22",

doi = "10.1103/PhysRevLett.120.087201",

language = "English",

volume = "120",

journal = "Physical Review Letters",

issn = "0031-9007",

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Ma, Z, Wang, J, Dong, ZY, Zhang, J, Li, S, Zheng, SH, Yu, Y, Wang, W, Che, L, Ran, K, Bao, S, Cai, Z, Čermák, P, Schneidewind, A, Yano, S, Gardner, JS, Lu, X, Yu, SL, Liu, JM, Li, S, Li, JX & Wen, J 2018, 'Spin-Glass Ground State in a Triangular-Lattice Compound YbZnGaO4', Physical Review Letters, vol. 120, no. 8, 087201. https://doi.org/10.1103/PhysRevLett.120.087201

TY - JOUR

T1 - Spin-Glass Ground State in a Triangular-Lattice Compound YbZnGaO4

AU - Ma, Zhen

AU - Wang, Jinghui

AU - Dong, Zhao Yang

AU - Zhang, Jun

AU - Li, Shichao

AU - Zheng, Shu Han

AU - Yu, Yunjie

AU - Wang, Wei

AU - Che, Liqiang

AU - Ran, Kejing

AU - Bao, Song

AU - Cai, Zhengwei

AU - Čermák, P.

AU - Schneidewind, A.

AU - Yano, S.

AU - Gardner, J. S.

AU - Lu, Xin

AU - Yu, Shun Li

AU - Liu, Jun Ming

AU - Li, Shiyan

AU - Li, Jian Xin

AU - Wen, Jinsheng

PY - 2018/2/22

Y1 - 2018/2/22

N2 - We report on comprehensive results identifying the ground state of a triangular-lattice structured YbZnGaO4 as a spin glass, including no long-range magnetic order, prominent broad excitation continua, and the absence of magnetic thermal conductivity. More crucially, from the ultralowerature ac susceptibility measurements, we unambiguously observe frequency-dependent peaks around 0.1 K, indicating the spin-glass ground state. We suggest this conclusion holds also for its sister compound YbMgGaO4, which is confirmed by the observation of spin freezing at low temperatures. We consider disorder and frustration to be the main driving force for the spin-glass phase.

AB - We report on comprehensive results identifying the ground state of a triangular-lattice structured YbZnGaO4 as a spin glass, including no long-range magnetic order, prominent broad excitation continua, and the absence of magnetic thermal conductivity. More crucially, from the ultralowerature ac susceptibility measurements, we unambiguously observe frequency-dependent peaks around 0.1 K, indicating the spin-glass ground state. We suggest this conclusion holds also for its sister compound YbMgGaO4, which is confirmed by the observation of spin freezing at low temperatures. We consider disorder and frustration to be the main driving force for the spin-glass phase.

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VL - 120

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

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ER -

Spin-Glass Ground State in a Triangular-Lattice Compound YbZnGaO4

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