Spin-flop phase in a honeycomb antiferromagnet Mn0.84Mg0.16TiO3

Shin Ichi Shamoto; Hiroki Yamauchi; Kazuhiko Ikeuchi; Min Kai Lee; Lieh Jeng Chang; V. Ovidiu Garlea; In Yong Hwang; Kee Hwan Lee; Jae Ho Chung

doi:10.7566/JPSJ.90.093703

Spin-flop phase in a honeycomb antiferromagnet Mn_0.84Mg_0.16TiO₃

Shin Ichi Shamoto, Hiroki Yamauchi, Kazuhiko Ikeuchi, Min Kai Lee, Lieh Jeng Chang, V. Ovidiu Garlea, In Yong Hwang, Kee Hwan Lee, Jae Ho Chung

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Abstract

The spin-flop phase of a honeycomb antiferromagnet of Mn_0.84Mg_0.16TiO₃ has been studied under magnetic field along normal direction to the honeycomb plane by neutron scattering. With increasing a magnetic field from 0 to 5 T, the inelastic scattering intensity increased by 1.5 times at (1 0 0), where the magnetic structure was found to be collinear-antiferromagnet with the spin parallel to [1 1 0] direction. The spin direction is consistent with a 1.5 times increase of the inelastic intensity. The negligible energy difference between K and KA points suggests small values for both Dzyaloshinskii-Moriya interaction and bond-dependent symmetric anisotropic exchange interaction in this material.

Original language	English
Article number	093703
Journal	Journal of the Physical Society of Japan
Volume	90
Issue number	9
DOIs	https://doi.org/10.7566/JPSJ.90.093703
State	Published - Sep 15 2021

Funding

Acknowledgments S.S. thanks for the invaluable discussion with Professors S. Hayami and M. Akatsu. K.I. thanks for the travel expense support from ISSP, Univ. Tokyo. This research was partly supported by the National Research Foundation of Korea (Grant No. 2020K1A3A7A09077712). This research used resources at the Spallation Neutron Source, DOE Office of Science User Facilities operated by the Oak Ridge National Laboratory. S.S. thanks for the invaluable discussion with Professors S. Hayami and M. Akatsu. K.I. thanks for the travel expense support from ISSP, Univ. Tokyo. This research was partly supported by the National Research Foundation of Korea (Grant No. 2020K1A3A7A09077712). This research used resources at the Spallation Neutron Source, DOE Office of Science User Facilities operated by the Oak Ridge National Laboratory.

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title = "Spin-flop phase in a honeycomb antiferromagnet Mn0.84Mg0.16TiO3",

abstract = "The spin-flop phase of a honeycomb antiferromagnet of Mn0.84Mg0.16TiO3 has been studied under magnetic field along normal direction to the honeycomb plane by neutron scattering. With increasing a magnetic field from 0 to 5 T, the inelastic scattering intensity increased by 1.5 times at (1 0 0), where the magnetic structure was found to be collinear-antiferromagnet with the spin parallel to [1 1 0] direction. The spin direction is consistent with a 1.5 times increase of the inelastic intensity. The negligible energy difference between K and KA points suggests small values for both Dzyaloshinskii-Moriya interaction and bond-dependent symmetric anisotropic exchange interaction in this material.",

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AU - Shamoto, Shin Ichi

AU - Yamauchi, Hiroki

AU - Ikeuchi, Kazuhiko

AU - Lee, Min Kai

AU - Chang, Lieh Jeng

AU - Garlea, V. Ovidiu

AU - Hwang, In Yong

AU - Lee, Kee Hwan

AU - Chung, Jae Ho

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Y1 - 2021/9/15

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AB - The spin-flop phase of a honeycomb antiferromagnet of Mn0.84Mg0.16TiO3 has been studied under magnetic field along normal direction to the honeycomb plane by neutron scattering. With increasing a magnetic field from 0 to 5 T, the inelastic scattering intensity increased by 1.5 times at (1 0 0), where the magnetic structure was found to be collinear-antiferromagnet with the spin parallel to [1 1 0] direction. The spin direction is consistent with a 1.5 times increase of the inelastic intensity. The negligible energy difference between K and KA points suggests small values for both Dzyaloshinskii-Moriya interaction and bond-dependent symmetric anisotropic exchange interaction in this material.

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Spin-flop phase in a honeycomb antiferromagnet Mn_0.84Mg_0.16TiO₃

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