Lattice Distortion and Octupole Ordering Model in CexLa1 xB6
Lattice Distortion and Octupole Ordering Model in CexLa1 xB6
复制标题
CexLa1 xB6 中的晶格畸变和八极排序模型
DOI:
10.1143/jpsj.72.1859
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发表时间:
2003
影响因子:
1.7
通讯作者:
Y. Kuramoto
中科院分区:
文献类型:
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作者:
K. Kubo;Y. Kuramoto
Possible order parameters of the phase IV in Ce x La 1- x B 6 are discussed with special attention to the lattice distortion recently observed. A Γ 5 u -type octupole order with a finite wave number is proposed as the origin of the distortion along the [111] direction. The Γ 8 crystalline electric field (CEF) level splits into three levels by a mean field with the Γ 5 u symmetry. The ground and highest singlets have the same quadrupole moment, while the intermediate doublet has an opposite sign. It is shown that any collinear order of the Γ 5 u -type octupole moment accompanies the Γ 5 g -type ferro-quadrupole order, and the coupling of the quadrupole moment with the lattice induces the distortion. The cusp in the magnetization at the phase transition is reproduced, but the internal magnetic field due to the octupole moment is smaller than the observed one by an order of magnitude.
DOI:
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发表时间:
2002
期刊:
J. Phys. Soc. Jpn. 71
影响因子:
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作者:
H.Takayanagi;K.Nitta S.Ishikawa;J.Nakamura;R.Yagi;L.Zhu;S.Yamanaka;H.Fukuoka;H.Fukuoka;K.Tanigaki;D.H.Chi;Y.Ren;G.M.Kalvius;M.Nakajima;D.Huo;K.Miyamoto;M.Koyama;H.Sato;K.Yamamoto;T.Fukunaga;T.Fujiwara;折茂慎一;J.Nakamura;T.Oguchi;T.Takasaki;H.Takagiwa;H.Takagiwa
通讯作者:
H.Takagiwa
DOI:
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发表时间:
2006
期刊:
Physica B378-380
影响因子:
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作者:
松尾繁政;古田佳野子;藤井敏之;永井克彦;畠中憲之;Hiroaki Onishi and Takashi Hotta;藤井敏之;Takahiro Maehira and Takashi Hotta;Katsunori Kubo and Takashi Hotta
通讯作者:
Katsunori Kubo and Takashi Hotta
DOI:
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发表时间:
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期刊:
影响因子:
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作者:
通讯作者:
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