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DOE OSTI · 2573503

Spin dynamics in linear magnetoelectric material Mn 3 Ta 2 O 8

Kikuchi, Hodaka [Univ. of Tokyo, Chiba (Japan)] (ORCID:0000000221081335)·Hasegawa, Shunsuke [Univ. of Tokyo, Chiba (Japan)] (ORCID:0000000330404260)·Asai, Shinichiro [Univ. of Tokyo, Chiba (Japan)] (ORCID:0000000257157899)·Hong, Tao [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000201618588)·Kimura, Kenta [Osaka Metropolitan University (Japan)] (ORCID:0000000258525681)·Kimura, Tsuyoshi [Univ. of Tokyo, Chiba (Japan)] (ORCID:0000000280305538)·Itoh, Shinichi [High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)] (ORCID:0000000246462580)·Masuda, Takatsugu [Univ. of Tokyo, Chiba (Japan); High Energy Accelerator Research Organization (KEK), Tsukuba (Japan); Univ. of Tokyo (Japan)] (ORCID:0000000251681024)
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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. In conclusion, the presence of strong frustration was found in the identified spin Hamiltonian.

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75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITYInelastic neutron scatteringfrustrationlinear magnetoelectric effect

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Kikuchi, Hodaka [Univ. of Tokyo, Chiba (Japan)] (ORCID:0000000221081335), Hasegawa, Shunsuke [Univ. of Tokyo, Chiba (Japan)] (ORCID:0000000330404260), Asai, Shinichiro [Univ. of Tokyo, Chiba (Japan)] (ORCID:0000000257157899), Hong, Tao [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000201618588), Kimura, Kenta [Osaka Metropolitan University (Japan)] (ORCID:0000000258525681), Kimura, Tsuyoshi [Univ. of Tokyo, Chiba (Japan)] (ORCID:0000000280305538), Itoh, Shinichi [High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)] (ORCID:0000000246462580), Masuda, Takatsugu [Univ. of Tokyo, Chiba (Japan); High Energy Accelerator Research Organization (KEK), Tsukuba (Japan); Univ. of Tokyo (Japan)] (ORCID:0000000251681024). 2025-04-14. Spin dynamics in linear magnetoelectric material Mn 3 Ta 2 O 8. https://doi.org/10.1088/1361-648x%2Fadc964

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