Pressure-Induced Antiferroquadrupole Order in CeTe

Journal of the Physical Society of Japan Volume 80 Issue 2 Page 023713-1-023713-4 published_at 2011
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Title ( eng )
Pressure-Induced Antiferroquadrupole Order in CeTe
Creator
Kawarasaki Yasuharu
Ochiai Akira
Source Title
Journal of the Physical Society of Japan
Volume 80
Issue 2
Start Page 023713-1
End Page 023713-4
Abstract
We have discovered that the magnetic phase diagram of CeTe under high pressure becomes quite similar to that of CeB6, strongly suggesting that an antiferroquadrupolar ordering is realized. At 1.2 GPa, the transition temperature increases from 3 K at 0.5 T to 6.3 K at 14.5 T. Since the crystal-field ground state of CeTe is the Γ7 doublet without a quadrupolar degree of freedom, this ordering is considered to be realized through the off-diagonal matrix element between Γ7 and Γ8 excited state, whose energy level is lowered with increasing the pressure.
Keywords
antiferroquadrupole order
magnetic phase diagram
Kondo effect
high pressure
CeTe
Descriptions
This work was supported by Grants-in-Aid for Scientific Research (No. 21244056 and No. 21102515).
NDC
Physics [ 420 ]
Language
eng
Resource Type journal article
Publisher
The Physical Society of Japan
一般社団法人日本物理学会
Date of Issued 2011
Rights
Copyright (c) 2011 The Physical Society of Japan
Copyright (c) 2011 一般社団法人日本物理学会
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
Publish Type Author’s Original
Access Rights open access
Source Identifier
[ISSN] 0031-9015
[NCID] AA00704814
[DOI] 10.1143/JPSJ.80.023713
[DOI] http://dx.doi.org/10.1143/JPSJ.80.023713