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

Hodaka Kikuchi; Kenta Kimura; Shinichi Itoh; Shinichiro Asai; Shunsuke Hasegawa; Takatsugu Masuda; Tao Hong; Tsuyoshi Kimura

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Spin dynamics in linear magnetoelectric material Mn₃Ta₂O₈

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arxiv 2405.02589 v1 pith:Q36ULKD5 submitted 2024-05-04 cond-mat.str-el

Spin dynamics in linear magnetoelectric material Mn₃Ta₂O₈

Hodaka Kikuchi , SHunsuke Hasegawa , Shinichiro Asai , Tao Hong , Kenta Kimura , Tsuyoshi Kimura , Shinichi Itoh , Takatsugu Masuda This is my paper

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keywords spinlineardynamicshamiltonianmagnetoelectricmaterialneutronanisotropy

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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.

Spin dynamics in linear magnetoelectric material Mn₃Ta₂O₈

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