Pressure-induced melting of magnetic order and emergence of a new quantum state in α-RuC l3

Zhe Wang; Jing Guo; F. F. Tafti; Anthony Hegg; Sudeshna Sen; Vladimir A. Sidorov; Le Wang; Shu Cai; Wei Yi; Yazhou Zhou; Honghong Wang; Shan Zhang; Ke Yang; Aiguo Li; Xiaodong Li; Yanchun Li; Jing Liu; Youguo Shi; Wei Ku; Qi Wu; Robert J. Cava; Liling Sun

doi:10.1103/PhysRevB.97.245149

Pressure-induced melting of magnetic order and emergence of a new quantum state in α-RuC l3

Zhe Wang, Jing Guo, F. F. Tafti, Anthony Hegg, Sudeshna Sen, Vladimir A. Sidorov, Le Wang, Shu Cai, Wei Yi, Yazhou Zhou, Honghong Wang, Shan Zhang, Ke Yang, Aiguo Li, Xiaodong Li, Yanchun Li, Jing Liu, Youguo Shi, Wei Ku, Qi WuRobert J. Cava, Liling Sun

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Abstract

Here we report the observation of pressure-induced melting of antiferromagnetic (AFM) order and the emergence of a new state in the honeycomb-lattice halide α-RuCl3, a candidate compound in the proximity of quantum spin liquid state. Our high-pressure heat capacity measurements demonstrate that the AFM order smoothly melts away at a critical pressure (PC) below 1 GPa. Intriguingly, the AFM transition temperature displays an increase upon applying pressure below the PC, in stark contrast to usual phase diagrams, for example, in pressurized parent compounds of unconventional superconductors. Furthermore, a stable magnetoresistance is observed in the high-pressure phase above PC which is robust against pressure up to ∼140 GPa.

Original language	English (US)
Article number	245149
Journal	Physical Review B
Volume	97
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevB.97.245149
State	Published - Jun 29 2018

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.97.245149

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Wang, Z., Guo, J., Tafti, F. F., Hegg, A., Sen, S., Sidorov, V. A., Wang, L., Cai, S., Yi, W., Zhou, Y., Wang, H., Zhang, S., Yang, K., Li, A., Li, X., Li, Y., Liu, J., Shi, Y., Ku, W., ... Sun, L. (2018). Pressure-induced melting of magnetic order and emergence of a new quantum state in α-RuC l3. Physical Review B, 97(24), Article 245149. https://doi.org/10.1103/PhysRevB.97.245149

@article{ed51656cdee64125a1ecfe3bb12c6944,

title = "Pressure-induced melting of magnetic order and emergence of a new quantum state in α-RuC l3",

abstract = "Here we report the observation of pressure-induced melting of antiferromagnetic (AFM) order and the emergence of a new state in the honeycomb-lattice halide α-RuCl3, a candidate compound in the proximity of quantum spin liquid state. Our high-pressure heat capacity measurements demonstrate that the AFM order smoothly melts away at a critical pressure (PC) below 1 GPa. Intriguingly, the AFM transition temperature displays an increase upon applying pressure below the PC, in stark contrast to usual phase diagrams, for example, in pressurized parent compounds of unconventional superconductors. Furthermore, a stable magnetoresistance is observed in the high-pressure phase above PC which is robust against pressure up to ∼140 GPa.",

author = "Zhe Wang and Jing Guo and Tafti, {F. F.} and Anthony Hegg and Sudeshna Sen and Sidorov, {Vladimir A.} and Le Wang and Shu Cai and Wei Yi and Yazhou Zhou and Honghong Wang and Shan Zhang and Ke Yang and Aiguo Li and Xiaodong Li and Yanchun Li and Jing Liu and Youguo Shi and Wei Ku and Qi Wu and Cava, {Robert J.} and Liling Sun",

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

year = "2018",

month = jun,

day = "29",

doi = "10.1103/PhysRevB.97.245149",

language = "English (US)",

volume = "97",

journal = "Physical Review B",

issn = "2469-9950",

publisher = "American Physical Society",

number = "24",

}

Wang, Z, Guo, J, Tafti, FF, Hegg, A, Sen, S, Sidorov, VA, Wang, L, Cai, S, Yi, W, Zhou, Y, Wang, H, Zhang, S, Yang, K, Li, A, Li, X, Li, Y, Liu, J, Shi, Y, Ku, W, Wu, Q, Cava, RJ & Sun, L 2018, 'Pressure-induced melting of magnetic order and emergence of a new quantum state in α-RuC l3', Physical Review B, vol. 97, no. 24, 245149. https://doi.org/10.1103/PhysRevB.97.245149

TY - JOUR

T1 - Pressure-induced melting of magnetic order and emergence of a new quantum state in α-RuC l3

AU - Wang, Zhe

AU - Guo, Jing

AU - Tafti, F. F.

AU - Hegg, Anthony

AU - Sen, Sudeshna

AU - Sidorov, Vladimir A.

AU - Wang, Le

AU - Cai, Shu

AU - Yi, Wei

AU - Zhou, Yazhou

AU - Wang, Honghong

AU - Zhang, Shan

AU - Yang, Ke

AU - Li, Aiguo

AU - Li, Xiaodong

AU - Li, Yanchun

AU - Liu, Jing

AU - Shi, Youguo

AU - Ku, Wei

AU - Wu, Qi

AU - Cava, Robert J.

AU - Sun, Liling

PY - 2018/6/29

Y1 - 2018/6/29

N2 - Here we report the observation of pressure-induced melting of antiferromagnetic (AFM) order and the emergence of a new state in the honeycomb-lattice halide α-RuCl3, a candidate compound in the proximity of quantum spin liquid state. Our high-pressure heat capacity measurements demonstrate that the AFM order smoothly melts away at a critical pressure (PC) below 1 GPa. Intriguingly, the AFM transition temperature displays an increase upon applying pressure below the PC, in stark contrast to usual phase diagrams, for example, in pressurized parent compounds of unconventional superconductors. Furthermore, a stable magnetoresistance is observed in the high-pressure phase above PC which is robust against pressure up to ∼140 GPa.

AB - Here we report the observation of pressure-induced melting of antiferromagnetic (AFM) order and the emergence of a new state in the honeycomb-lattice halide α-RuCl3, a candidate compound in the proximity of quantum spin liquid state. Our high-pressure heat capacity measurements demonstrate that the AFM order smoothly melts away at a critical pressure (PC) below 1 GPa. Intriguingly, the AFM transition temperature displays an increase upon applying pressure below the PC, in stark contrast to usual phase diagrams, for example, in pressurized parent compounds of unconventional superconductors. Furthermore, a stable magnetoresistance is observed in the high-pressure phase above PC which is robust against pressure up to ∼140 GPa.

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JF - Physical Review B

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ER -

Pressure-induced melting of magnetic order and emergence of a new quantum state in α-RuC l3

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