Pressure-induced antiferroquadrupole order in CeTe

Yasuharu Kawarasaki, Takeshi Matsumura, Masafumi Sera, Akira Ochiai

研究成果: Article査読

8 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号023713
ジャーナルjournal of the physical society of japan
80
2
DOI
出版ステータスPublished - 2011 2

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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