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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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classification cond-mat.str-el
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.

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