Successive spin-flop transitions of a Néel-type antiferromagnet Li2MnO3 single crystal with a honeycomb lattice

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Title
Successive spin-flop transitions of a Néel-type antiferromagnet Li2MnO3 single crystal with a honeycomb lattice
Author(s)
Karuppannan Balamurugan; Sanghyun Lee; Kim J.-S.; Ok J.-M.; Jo Y.-J.; Song Y.-M.; Kim S.-A.; Choi E.S.; Manh Duc Le; Je-Geun Park
Publication Date
2014-09
Journal
PHYSICAL REVIEW B, v.90, no.10, pp.104412 -
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 N´eel-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 N´eel phase.
URI
https://pr.ibs.re.kr/handle/8788114/914
ISSN
2469-9950
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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