Spin-phonon-charge coupling in the two-dimensional honeycomb lattice compound Ni2Te3 O8

Ajay Tiwari; D. Chandrasekhar Kakarla; Bommareddy Poojitha; Priyambada Sahoo; H. L. Liu; A. Dixit; C. W. Wang; T. W. Yen; M. J. Hsieh; J. Y. Lin; Jyothinagaram Krishnamurthy; Y. C. Lai; H. Chou; T. W. Kuo; Arkadeb Pal; H. D. Yang

doi:10.1103/PhysRevB.108.075113

Spin-phonon-charge coupling in the two-dimensional honeycomb lattice compound Ni2Te3 O8

Ajay Tiwari, D. Chandrasekhar Kakarla^*, Bommareddy Poojitha, Priyambada Sahoo, H. L. Liu, A. Dixit, C. W. Wang, T. W. Yen, M. J. Hsieh, J. Y. Lin, Jyothinagaram Krishnamurthy, Y. C. Lai, H. Chou, T. W. Kuo, Arkadeb Pal, H. D. Yang^*

^*Corresponding author for this work

Department of Physics

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

5 Citations (Scopus)

Abstract

A two-dimensional honeycomb-structured magnet Ni2Te3O8 was synthesized, characterized, and comprehensively investigated for its intriguing physical properties. DC magnetization, specific heat, and neutron diffraction revealed a long-range commensurate antiferromagnetic ordering at TN∼35K with a propagation vector k=(100). The magnetic sublattice comprises stacking distorted honeycomb layers along the a axis. The Ni2+ spins on the honeycomb lattice are essentially pointing out of the layers and are antiferromagnetically coupled to the neighboring spins. Temperature (T) and magnetic field (H) dependent dielectric measurements indicated an apparent anomaly near TN, accompanied by a weak magnetodielectric effect. Raman mode renormalization and lattice anomalies near TN demonstrated spin-lattice coupling through magnetoelastic and spin-phonon interactions. These findings highlight the fascinating interplay between spin, charge, and phonon degrees of freedom in Ni2Te3O8.

Original language	English
Article number	075113
Journal	Physical Review B
Volume	108
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.108.075113
Publication status	Published - 2023 Aug 15

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.108.075113

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Tiwari, A., Kakarla, D. C., Poojitha, B., Sahoo, P., Liu, H. L., Dixit, A., Wang, C. W., Yen, T. W., Hsieh, M. J., Lin, J. Y., Krishnamurthy, J., Lai, Y. C., Chou, H., Kuo, T. W., Pal, A., & Yang, H. D. (2023). Spin-phonon-charge coupling in the two-dimensional honeycomb lattice compound Ni2Te3 O8. Physical Review B, 108(7), Article 075113. https://doi.org/10.1103/PhysRevB.108.075113

@article{53f3394193374ce6aa4054e31b386d91,

title = "Spin-phonon-charge coupling in the two-dimensional honeycomb lattice compound Ni2Te3 O8",

abstract = "A two-dimensional honeycomb-structured magnet Ni2Te3O8 was synthesized, characterized, and comprehensively investigated for its intriguing physical properties. DC magnetization, specific heat, and neutron diffraction revealed a long-range commensurate antiferromagnetic ordering at TN∼35K with a propagation vector k=(100). The magnetic sublattice comprises stacking distorted honeycomb layers along the a axis. The Ni2+ spins on the honeycomb lattice are essentially pointing out of the layers and are antiferromagnetically coupled to the neighboring spins. Temperature (T) and magnetic field (H) dependent dielectric measurements indicated an apparent anomaly near TN, accompanied by a weak magnetodielectric effect. Raman mode renormalization and lattice anomalies near TN demonstrated spin-lattice coupling through magnetoelastic and spin-phonon interactions. These findings highlight the fascinating interplay between spin, charge, and phonon degrees of freedom in Ni2Te3O8.",

author = "Ajay Tiwari and Kakarla, {D. Chandrasekhar} and Bommareddy Poojitha and Priyambada Sahoo and Liu, {H. L.} and A. Dixit and Wang, {C. W.} and Yen, {T. W.} and Hsieh, {M. J.} and Lin, {J. Y.} and Jyothinagaram Krishnamurthy and Lai, {Y. C.} and H. Chou and Kuo, {T. W.} and Arkadeb Pal and Yang, {H. D.}",

note = "Publisher Copyright: {\textcopyright} 2023 American Physical Society.",

year = "2023",

month = aug,

day = "15",

doi = "10.1103/PhysRevB.108.075113",

language = "English",

volume = "108",

journal = "Physical Review B",

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AU - Tiwari, Ajay

AU - Kakarla, D. Chandrasekhar

AU - Poojitha, Bommareddy

AU - Sahoo, Priyambada

AU - Liu, H. L.

AU - Dixit, A.

AU - Wang, C. W.

AU - Yen, T. W.

AU - Hsieh, M. J.

AU - Lin, J. Y.

AU - Krishnamurthy, Jyothinagaram

AU - Lai, Y. C.

AU - Chou, H.

AU - Kuo, T. W.

AU - Pal, Arkadeb

AU - Yang, H. D.

PY - 2023/8/15

Y1 - 2023/8/15

N2 - A two-dimensional honeycomb-structured magnet Ni2Te3O8 was synthesized, characterized, and comprehensively investigated for its intriguing physical properties. DC magnetization, specific heat, and neutron diffraction revealed a long-range commensurate antiferromagnetic ordering at TN∼35K with a propagation vector k=(100). The magnetic sublattice comprises stacking distorted honeycomb layers along the a axis. The Ni2+ spins on the honeycomb lattice are essentially pointing out of the layers and are antiferromagnetically coupled to the neighboring spins. Temperature (T) and magnetic field (H) dependent dielectric measurements indicated an apparent anomaly near TN, accompanied by a weak magnetodielectric effect. Raman mode renormalization and lattice anomalies near TN demonstrated spin-lattice coupling through magnetoelastic and spin-phonon interactions. These findings highlight the fascinating interplay between spin, charge, and phonon degrees of freedom in Ni2Te3O8.

AB - A two-dimensional honeycomb-structured magnet Ni2Te3O8 was synthesized, characterized, and comprehensively investigated for its intriguing physical properties. DC magnetization, specific heat, and neutron diffraction revealed a long-range commensurate antiferromagnetic ordering at TN∼35K with a propagation vector k=(100). The magnetic sublattice comprises stacking distorted honeycomb layers along the a axis. The Ni2+ spins on the honeycomb lattice are essentially pointing out of the layers and are antiferromagnetically coupled to the neighboring spins. Temperature (T) and magnetic field (H) dependent dielectric measurements indicated an apparent anomaly near TN, accompanied by a weak magnetodielectric effect. Raman mode renormalization and lattice anomalies near TN demonstrated spin-lattice coupling through magnetoelastic and spin-phonon interactions. These findings highlight the fascinating interplay between spin, charge, and phonon degrees of freedom in Ni2Te3O8.

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Spin-phonon-charge coupling in the two-dimensional honeycomb lattice compound Ni2Te3 O8

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