Pressure-Induced Antiferroquadrupole Order in CeTe
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概要
- 論文の詳細を見る
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 \Gamma_{7} doublet without a quadrupolar degree of freedom, this ordering is considered to be realized through the off-diagonal matrix element between \Gamma_{7} and \Gamma_{8} excited state, whose energy level is lowered with increasing the pressure.
- 2011-02-15
著者
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Sera Masafumi
Department Of Physics Faculty Of Science Nagoya University
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Ochiai Akira
Department Of Material Science And Technology Faculty Of Engineering Niigata University
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Matsumura Takeshi
Department Of Agrobiology And Bioresources Faculty Of Agriculture Hokkaido University
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Ochiai Akira
Department of Physics, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
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Kawarasaki Yasuharu
Department of Quantum Matter, AdSM, Hiroshima University, Higashihiroshima, Hiroshima 739-8530, Japan
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