Neutron scattering study of the quasi-one-dimensional antiferromagnet Ba2 CoSi2 O7

Minoru Soda; Tao Hong; Maxim Avdeev; Hideki Yoshizawa; Takatsugu Masuda; Hazuki Kawano-Furukawa

doi:10.1103/PhysRevB.100.144410

Neutron scattering study of the quasi-one-dimensional antiferromagnet Ba2 CoSi2 O7

Minoru Soda, Tao Hong, Maxim Avdeev, Hideki Yoshizawa, Takatsugu Masuda, Hazuki Kawano-Furukawa

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Abstract

Magnetization and neutron scattering measurements have been carried out on an antiferromagnet Ba2CoSi2O7. The observed magnetic excitation is almost dispersionless, and the neutron intensity is only modulated along the [101] direction. The dispersionless magnetic excitation suggest that the Ba2CoSi2O7 system is a quasi-one-dimensional antiferromagnet. Classical spin-wave theory for a one-dimensional antiferromagnet can explain the dispersionless spin excitation. The magnetic structure determined by the measurement of the neutron powder diffraction is consistent with no observation of the multiferroic property in this system.

Original language	English
Article number	144410
Journal	Physical Review B
Volume	100
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.100.144410
State	Published - Oct 7 2019

Funding

The neutron experiment on CTAX was supported by the US-Japan Cooperative Program on Neutron Scattering. The alignment of the single crystal was carried out using the CG-1B installed at ORNL. A portion of this research used resources at the High Flux Isotope Reactor, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. This work was supported by KAKENHI (Grant No. 15K05123).

Funders	Funder number
US-Japan	15K05123

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title = "Neutron scattering study of the quasi-one-dimensional antiferromagnet Ba2 CoSi2 O7",

abstract = "Magnetization and neutron scattering measurements have been carried out on an antiferromagnet Ba2CoSi2O7. The observed magnetic excitation is almost dispersionless, and the neutron intensity is only modulated along the [101] direction. The dispersionless magnetic excitation suggest that the Ba2CoSi2O7 system is a quasi-one-dimensional antiferromagnet. Classical spin-wave theory for a one-dimensional antiferromagnet can explain the dispersionless spin excitation. The magnetic structure determined by the measurement of the neutron powder diffraction is consistent with no observation of the multiferroic property in this system.",

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AU - Soda, Minoru

AU - Hong, Tao

AU - Avdeev, Maxim

AU - Yoshizawa, Hideki

AU - Masuda, Takatsugu

AU - Kawano-Furukawa, Hazuki

PY - 2019/10/7

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N2 - Magnetization and neutron scattering measurements have been carried out on an antiferromagnet Ba2CoSi2O7. The observed magnetic excitation is almost dispersionless, and the neutron intensity is only modulated along the [101] direction. The dispersionless magnetic excitation suggest that the Ba2CoSi2O7 system is a quasi-one-dimensional antiferromagnet. Classical spin-wave theory for a one-dimensional antiferromagnet can explain the dispersionless spin excitation. The magnetic structure determined by the measurement of the neutron powder diffraction is consistent with no observation of the multiferroic property in this system.

AB - Magnetization and neutron scattering measurements have been carried out on an antiferromagnet Ba2CoSi2O7. The observed magnetic excitation is almost dispersionless, and the neutron intensity is only modulated along the [101] direction. The dispersionless magnetic excitation suggest that the Ba2CoSi2O7 system is a quasi-one-dimensional antiferromagnet. Classical spin-wave theory for a one-dimensional antiferromagnet can explain the dispersionless spin excitation. The magnetic structure determined by the measurement of the neutron powder diffraction is consistent with no observation of the multiferroic property in this system.

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Neutron scattering study of the quasi-one-dimensional antiferromagnet Ba2 CoSi2 O7

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