Spin dynamics in the stripe-ordered buckled honeycomb lattice antiferromagnet Ba2NiTeO6

Asai, Shinichiro; Soda, Minoru; Kasatani, Kazuhiro; Ono, Toshio; Garlea, Vasile Ovidiu; Winn, Barry L.; Masuda, Takatsugu

doi:10.1103/PhysRevB.96.104414

Spin dynamics in the stripe-ordered buckled honeycomb lattice antiferromagnet ${Ba}_{2} {NiTeO}_{6}$

Journal Article · Fri Sep 01 00:00:00 EDT 2017 · Physical Review B

DOI:https://doi.org/10.1103/PhysRevB.96.104414· OSTI ID:1394594

Asai, Shinichiro ^[1]; Soda, Minoru ^[1]; Kasatani, Kazuhiro ^[2]; Ono, Toshio ^[2]; ^[3]; ^[3]; Masuda, Takatsugu ^[1]

Univ. of Tokyo (Japan). Inst. for Solid State Physics
Osaka Prefecture Univ., Sakai, Osaka, (Japan). Dept. of Physical Science
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division

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.

View Accepted Manuscript (DOE)

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1394594

Journal Information:: Physical Review B, Journal Name: Physical Review B Journal Issue: 10 Vol. 96; ISSN 2469-9950; ISSN PRBMDO

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited By (2)

Role of quantum fluctuations on spin liquids and ordered phases in the Heisenberg model on the honeycomb lattice Merino, Jaime; Ralko, Arnaud Physical Review B, Vol. 97, Issue 20 https://doi.org/10.1103/physrevb.97.205112	journal	May 2018
Role of quantum fluctuations on spin liquids and ordered phases in the Heisenberg model on the honeycomb lattice Merino, J.; Ralko, A. arXiv https://doi.org/10.48550/arxiv.1801.07042	text	January 2018

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