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arXiv · 2405.02589

Spin dynamics in linear magnetoelectric material Mn$_{3}$Ta$_{2}$O$_{8}$

Hodaka Kikuchi·SHunsuke Hasegawa·Shinichiro Asai·Tao Hong·Kenta Kimura·Tsuyoshi Kimura·Shinichi Itoh·Takatsugu Masuda
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Abstract

We performed inelastic neutron scattering experiments on single crystal samples of a linear magnetoelectric material Mn$_{3}$Ta$_{2}$O$_{8}$, which exhibits a collinear antiferromagnetic order, to reveal the spin dynamics. Numerous modes observed in the neutron spectra were reasonably reproduced by linear spin-wave theory on the basis of the spin Hamiltonian including eight Heisenberg interactions and an easy-plane type single-ion anisotropy. The presence of strong frustration was found in the identified spin Hamiltonian.

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Hodaka Kikuchi, SHunsuke Hasegawa, Shinichiro Asai, Tao Hong, Kenta Kimura, Tsuyoshi Kimura, Shinichi Itoh, Takatsugu Masuda. 2024-05-04. Spin dynamics in linear magnetoelectric material Mn$_{3}$Ta$_{2}$O$_{8}$. https://doi.org/10.1088/1361-648x%2Fadc964

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