Successive spin-flop transitions of a Neel-type antiferromagnet Li2MnO3 single crystal with a honeycomb lattice
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SCOPUS
- Title
- Successive spin-flop transitions of a Neel-type antiferromagnet Li2MnO3 single crystal with a honeycomb lattice
- Authors
- Balamurugan, K; Lee, SH; Kim, JS; Ok, JM; Jo, YJ; Song, YM; Kim, SA; Choi, ES; Le, MD; Park, JG
- Date Issued
- 2014-09-15
- Publisher
- AMER PHYSICAL SOC
- Abstract
- We have carried out high magnetic field studies of single-crystalline Li2MnO3, a honeycomb lattice antiferromagnet. Its magnetic phase diagram was mapped out using magnetization measurements at applied fields up to 35 T. Our results show that it undergoes two successive meta-magnetic transitions around 9 T fields applied perpendicular to the ab plane (along the c* axis). These phase transitions are completely absent in the magnetization measured with the field applied along the ab plane. In order to understand this magnetic phase diagram, we developed a mean-field model starting from the correct Neel-type magnetic structure, consistent with our single crystal neutron diffraction data at zero field. Our model calculations succeeded in explaining the two meta-magnetic transitions that arise when Li2MnO3 enters two different spin-flop phases from the zero field Neel phase.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12305
- DOI
- 10.1103/PHYSREVB.90.104412
- ISSN
- 1098-0121
- Article Type
- Article
- Citation
- PHYSICAL REVIEW B, vol. 90, no. 10, 2014-09-15
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