Comprehensive inelastic neutron scattering study of the multiferroic Mn1-x Cox WO4

Jinchen Wang; R. S. Fishman; Yiming Qiu; J. A. Fernandez-Baca; Georg Ehlers; K. C. Liang; Yaqi Wang; Bernd Lorenz; C. W. Chu; Feng Ye

doi:10.1103/PhysRevB.98.214425

Comprehensive inelastic neutron scattering study of the multiferroic Mn1-x Cox WO4

Jinchen Wang, R. S. Fishman, Yiming Qiu, J. A. Fernandez-Baca, Georg Ehlers, K. C. Liang, Yaqi Wang, Bernd Lorenz, C. W. Chu, Feng Ye

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Abstract

Using high-resolution inelastic neutron scattering, we examine the spin dynamics of Mn1-xCoxWO4 in the collinear AF1, the ac-b spiral AF2, and the ac cycloidal AF5 phases. The spin wave excitations are well described by a Heisenberg model with competing long-range exchange interactions (Ji up to 12th nearest neighbors) and the single-ion anisotropy K induced by the spin-orbit interaction. While the exchange constants are relatively unchanged, the dominant effect of doping is to change the single-ion anisotropy from easy axis (K>0) in the collinear AF1 phase to easy plane (K<0) in the two multiferroic phases.

Original language	English
Article number	214425
Journal	Physical Review B
Volume	98
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.98.214425
Publication status	Published - 2018 Dec 14

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.98.214425

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title = "Comprehensive inelastic neutron scattering study of the multiferroic Mn1-x Cox WO4",

abstract = "Using high-resolution inelastic neutron scattering, we examine the spin dynamics of Mn1-xCoxWO4 in the collinear AF1, the ac-b spiral AF2, and the ac cycloidal AF5 phases. The spin wave excitations are well described by a Heisenberg model with competing long-range exchange interactions (Ji up to 12th nearest neighbors) and the single-ion anisotropy K induced by the spin-orbit interaction. While the exchange constants are relatively unchanged, the dominant effect of doping is to change the single-ion anisotropy from easy axis (K>0) in the collinear AF1 phase to easy plane (K<0) in the two multiferroic phases.",

author = "Jinchen Wang and Fishman, {R. S.} and Yiming Qiu and Fernandez-Baca, {J. A.} and Georg Ehlers and Liang, {K. C.} and Yaqi Wang and Bernd Lorenz and Chu, {C. W.} and Feng Ye",

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year = "2018",

month = dec,

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doi = "10.1103/PhysRevB.98.214425",

language = "English",

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T1 - Comprehensive inelastic neutron scattering study of the multiferroic Mn1-x Cox WO4

AU - Wang, Jinchen

AU - Fishman, R. S.

AU - Qiu, Yiming

AU - Fernandez-Baca, J. A.

AU - Ehlers, Georg

AU - Liang, K. C.

AU - Wang, Yaqi

AU - Lorenz, Bernd

AU - Chu, C. W.

AU - Ye, Feng

PY - 2018/12/14

Y1 - 2018/12/14

N2 - Using high-resolution inelastic neutron scattering, we examine the spin dynamics of Mn1-xCoxWO4 in the collinear AF1, the ac-b spiral AF2, and the ac cycloidal AF5 phases. The spin wave excitations are well described by a Heisenberg model with competing long-range exchange interactions (Ji up to 12th nearest neighbors) and the single-ion anisotropy K induced by the spin-orbit interaction. While the exchange constants are relatively unchanged, the dominant effect of doping is to change the single-ion anisotropy from easy axis (K>0) in the collinear AF1 phase to easy plane (K<0) in the two multiferroic phases.

AB - Using high-resolution inelastic neutron scattering, we examine the spin dynamics of Mn1-xCoxWO4 in the collinear AF1, the ac-b spiral AF2, and the ac cycloidal AF5 phases. The spin wave excitations are well described by a Heisenberg model with competing long-range exchange interactions (Ji up to 12th nearest neighbors) and the single-ion anisotropy K induced by the spin-orbit interaction. While the exchange constants are relatively unchanged, the dominant effect of doping is to change the single-ion anisotropy from easy axis (K>0) in the collinear AF1 phase to easy plane (K<0) in the two multiferroic phases.

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JF - Physical Review B

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ER -

Comprehensive inelastic neutron scattering study of the multiferroic Mn1-x Cox WO4

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