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Title: Spin dynamics in the stripe-ordered buckled honeycomb lattice antiferromagnet Ba 2 NiTeO 6

Abstract

We carried out inelastic neutron scattering experiments on a buckled honeycomb lattice antiferromagnet Ba2NiTeO6 exhibiting a stripe structure at a low temperature. Magnetic excitations are observed in the energy range of ℏω≲10 meV having an anisotropy gap of 2 meV at 2 K. We perform spin-wave calculations to identify the spin model. The obtained microscopic parameters are consistent with the location of the stripe structure in the classical phase diagram. Furthermore, the Weiss temperature independently estimated from a bulk magnetic susceptibility is consistent with the microscopic parameters. The results reveal that a competition between the nearest-neighbor and next-nearest-neighbor interactions that together with a relatively large single-ion magnetic anisotropy stabilize the stripe magnetic structure.

Authors:
; ; ; ; ORCiD logo; ORCiD logo;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1394594
DOE Contract Number:
AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review B; Journal Volume: 96; Journal Issue: 10
Country of Publication:
United States
Language:
English

Citation Formats

Asai, Shinichiro, Soda, Minoru, Kasatani, Kazuhiro, Ono, Toshio, Garlea, Vasile Ovidiu, Winn, Barry L., and Masuda, Takatsugu. Spin dynamics in the stripe-ordered buckled honeycomb lattice antiferromagnet Ba2NiTeO6. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.96.104414.
Asai, Shinichiro, Soda, Minoru, Kasatani, Kazuhiro, Ono, Toshio, Garlea, Vasile Ovidiu, Winn, Barry L., & Masuda, Takatsugu. Spin dynamics in the stripe-ordered buckled honeycomb lattice antiferromagnet Ba2NiTeO6. United States. doi:10.1103/PhysRevB.96.104414.
Asai, Shinichiro, Soda, Minoru, Kasatani, Kazuhiro, Ono, Toshio, Garlea, Vasile Ovidiu, Winn, Barry L., and Masuda, Takatsugu. 2017. "Spin dynamics in the stripe-ordered buckled honeycomb lattice antiferromagnet Ba2NiTeO6". United States. doi:10.1103/PhysRevB.96.104414.
@article{osti_1394594,
title = {Spin dynamics in the stripe-ordered buckled honeycomb lattice antiferromagnet Ba2NiTeO6},
author = {Asai, Shinichiro and Soda, Minoru and Kasatani, Kazuhiro and Ono, Toshio and Garlea, Vasile Ovidiu and Winn, Barry L. and Masuda, Takatsugu},
abstractNote = {We carried out inelastic neutron scattering experiments on a buckled honeycomb lattice antiferromagnet Ba2NiTeO6 exhibiting a stripe structure at a low temperature. Magnetic excitations are observed in the energy range of ℏω≲10 meV having an anisotropy gap of 2 meV at 2 K. We perform spin-wave calculations to identify the spin model. The obtained microscopic parameters are consistent with the location of the stripe structure in the classical phase diagram. Furthermore, the Weiss temperature independently estimated from a bulk magnetic susceptibility is consistent with the microscopic parameters. The results reveal that a competition between the nearest-neighbor and next-nearest-neighbor interactions that together with a relatively large single-ion magnetic anisotropy stabilize the stripe magnetic structure.},
doi = {10.1103/PhysRevB.96.104414},
journal = {Physical Review B},
number = 10,
volume = 96,
place = {United States},
year = 2017,
month = 9
}