Antiferromagnetic ordering in Li2MnO3 single crystals with a two-dimensional honeycomb lattice

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Title
Antiferromagnetic ordering in Li2MnO3 single crystals with a two-dimensional honeycomb lattice
Author(s)
Sanghyun Lee; Seongil Choi; Jiyeon Kim; Hasung Sim; Choongjae Won; Seongsu Lee; Shin Ae Kim; Namjung Hur; Je-Geun Park
Publication Date
2012-11
Journal
JOURNAL OF PHYSICS-CONDENSED MATTER, v.24, no.45, pp.456004 -
Publisher
IOP PUBLISHING LTD
Abstract
Li 2MnO 3 consists of a layered Mn honeycomb lattice separated by a single layer of LiO 6 octahedra along the c-axis. By using single crystal Li 2MnO 3 samples, we have examined the physical properties and carried out both powder and single crystal neutron diffraction studies to determine that Mn moments order antiferromagnetically at T N=36K with an ordered magnetic moment of 2.3μ B perpendicular to the ab plane. We have also discovered that about 35% of the full magnetic entropy is released in the supposedly simple paramagnetic phase, indicative of unusual spin dynamics at higher temperature. © 2012 IOP Publishing Ltd.
URI
https://pr.ibs.re.kr/handle/8788114/1421
ISSN
0953-8984
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
Files in This Item:
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