Antiferromagnetic ordering in Li 2MnO 3 single crystals with a two-dimensional honeycomb lattice

Sanghyun Lee; Seongil Choi; Jiyeon Kim; Hasung Sim; Choongjae Won; Seongsu Lee; Shin Ae Kim; Namjung Hur; Je Geun Park

doi:10.1088/0953-8984/24/45/456004

Antiferromagnetic ordering in Li ₂MnO ₃ single crystals with a two-dimensional honeycomb lattice

Sanghyun Lee, Seongil Choi, Jiyeon Kim, Hasung Sim, Choongjae Won, Seongsu Lee, Shin Ae Kim, Namjung Hur, Je Geun Park

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

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.

Original language	English
Article number	456004
Journal	Journal of Physics: Condensed Matter
Volume	24
Issue number	45
DOIs	https://doi.org/10.1088/0953-8984/24/45/456004
State	Published - Nov 14 2012
Externally published	Yes

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title = "Antiferromagnetic ordering in Li 2MnO 3 single crystals with a two-dimensional honeycomb lattice",

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.",

author = "Sanghyun Lee and Seongil Choi and Jiyeon Kim and Hasung Sim and Choongjae Won and Seongsu Lee and Kim, {Shin Ae} and Namjung Hur and Park, {Je Geun}",

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T1 - Antiferromagnetic ordering in Li 2MnO 3 single crystals with a two-dimensional honeycomb lattice

AU - Lee, Sanghyun

AU - Choi, Seongil

AU - Kim, Jiyeon

AU - Sim, Hasung

AU - Won, Choongjae

AU - Lee, Seongsu

AU - Kim, Shin Ae

AU - Hur, Namjung

AU - Park, Je Geun

PY - 2012/11/14

Y1 - 2012/11/14

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84867938941&partnerID=8YFLogxK

U2 - 10.1088/0953-8984/24/45/456004

DO - 10.1088/0953-8984/24/45/456004

M3 - Article

AN - SCOPUS:84867938941

SN - 0953-8984

VL - 24

JO - Journal of Physics: Condensed Matter

JF - Journal of Physics: Condensed Matter

IS - 45

M1 - 456004

ER -

Antiferromagnetic ordering in Li ₂MnO ₃ single crystals with a two-dimensional honeycomb lattice

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