Field-induced spin-liquid-like state in a magnetic honeycomb lattice

Ruidan Zhong; Mimi Chung; Tai Kong; Loi T. Nguyen; Shiming Lei; R. J. Cava

doi:10.1103/PhysRevB.98.220407

Field-induced spin-liquid-like state in a magnetic honeycomb lattice

Ruidan Zhong, Mimi Chung, Tai Kong, Loi T. Nguyen, Shiming Lei, R. J. Cava

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

21 Scopus citations

Abstract

Quantum fluctuations in magnetic lattices can yield a quantum spin-liquid (QSL) state, where no long-range order appears even at zero temperature. The variety of mechanisms that can generate the spin-liquid state and the more exotic QSL state remain unclear, however. Here, we report a magnetic honeycomb system, BaCo2(P1-xVx)2O8, in which the spin correlations can be tuned by the disorder, leading to different magnetic behaviors. At low x, the material has a spin-glass ground state that appears to be due to coexisting and competing correlations. We have found that an external magnetic field can introduce spin-liquid-like behavior for some members of the solid solution, testified by the magnetic and thermodynamic experiments. Our results suggest that structural geometry, chemical disorder, and external field may help enhance quantum fluctuations in magnetic honeycomb materials.

Original language	English (US)
Article number	220407
Journal	Physical Review B
Volume	98
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.98.220407
State	Published - Dec 18 2018
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.98.220407

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title = "Field-induced spin-liquid-like state in a magnetic honeycomb lattice",

abstract = "Quantum fluctuations in magnetic lattices can yield a quantum spin-liquid (QSL) state, where no long-range order appears even at zero temperature. The variety of mechanisms that can generate the spin-liquid state and the more exotic QSL state remain unclear, however. Here, we report a magnetic honeycomb system, BaCo2(P1-xVx)2O8, in which the spin correlations can be tuned by the disorder, leading to different magnetic behaviors. At low x, the material has a spin-glass ground state that appears to be due to coexisting and competing correlations. We have found that an external magnetic field can introduce spin-liquid-like behavior for some members of the solid solution, testified by the magnetic and thermodynamic experiments. Our results suggest that structural geometry, chemical disorder, and external field may help enhance quantum fluctuations in magnetic honeycomb materials.",

author = "Ruidan Zhong and Mimi Chung and Tai Kong and Nguyen, {Loi T.} and Shiming Lei and Cava, {R. J.}",

note = "Funding Information: This research was supported by Gordon and Betty Moore Foundation, EPiQS initiative, Grant No. GBMF-4412. The authors gratefully acknowledge discussions with Oleg Tchernyshyov. Publisher Copyright: {\textcopyright} 2018 American Physical Society.",

year = "2018",

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day = "18",

doi = "10.1103/PhysRevB.98.220407",

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AU - Zhong, Ruidan

AU - Chung, Mimi

AU - Kong, Tai

AU - Nguyen, Loi T.

AU - Lei, Shiming

AU - Cava, R. J.

N1 - Funding Information: This research was supported by Gordon and Betty Moore Foundation, EPiQS initiative, Grant No. GBMF-4412. The authors gratefully acknowledge discussions with Oleg Tchernyshyov. Publisher Copyright: © 2018 American Physical Society.

PY - 2018/12/18

Y1 - 2018/12/18

N2 - Quantum fluctuations in magnetic lattices can yield a quantum spin-liquid (QSL) state, where no long-range order appears even at zero temperature. The variety of mechanisms that can generate the spin-liquid state and the more exotic QSL state remain unclear, however. Here, we report a magnetic honeycomb system, BaCo2(P1-xVx)2O8, in which the spin correlations can be tuned by the disorder, leading to different magnetic behaviors. At low x, the material has a spin-glass ground state that appears to be due to coexisting and competing correlations. We have found that an external magnetic field can introduce spin-liquid-like behavior for some members of the solid solution, testified by the magnetic and thermodynamic experiments. Our results suggest that structural geometry, chemical disorder, and external field may help enhance quantum fluctuations in magnetic honeycomb materials.

AB - Quantum fluctuations in magnetic lattices can yield a quantum spin-liquid (QSL) state, where no long-range order appears even at zero temperature. The variety of mechanisms that can generate the spin-liquid state and the more exotic QSL state remain unclear, however. Here, we report a magnetic honeycomb system, BaCo2(P1-xVx)2O8, in which the spin correlations can be tuned by the disorder, leading to different magnetic behaviors. At low x, the material has a spin-glass ground state that appears to be due to coexisting and competing correlations. We have found that an external magnetic field can introduce spin-liquid-like behavior for some members of the solid solution, testified by the magnetic and thermodynamic experiments. Our results suggest that structural geometry, chemical disorder, and external field may help enhance quantum fluctuations in magnetic honeycomb materials.

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Field-induced spin-liquid-like state in a magnetic honeycomb lattice

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