Pressure Effects on Crystal Electric Field Excitations in Ultra-Low-Carrier Kondo-Lattice Systems CeP and CeAs

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概要

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• Pressure effects on crystal electric field (CEF) excitations in ultra-low carrier systems CeP and CeAs have been studied up to 2.8 GPa. There are two critical pressures P_c and P_B:0.25 GPa and 1.1 GPa for CeP, while 1.3 GPa and 2.5 GPa for CeAs, respectively. CEF excitations are well-defined for P < P_B, and there is no anomaly at the onset pressure of the ferromagnetic order, P_c. In contrast, striking anomalies have been observed around P_B. For CeP, the CEF excitation decreases to 12 meV and a new CEF excitation appears at 9 meV near P_B, then it gradually replaces the first one above P_B . For CeAs, a CEF excitation exhibits strong softening as well as broadening near P_B. Finally, the CEF spectra exhibit strong broadening around 40 K in the low temperature phase near and above P_B.

• 社団法人日本物理学会の論文
• 1995-02-15

著者

• YOSHIZAWA Hideki

  Institute for Solid State Physics,University of Tokyo

• OOHARA Yasuaki

  Institute for Solid State Physics, The University of Tokyo

• Mitsuda Setsuo

  Department Of Physics Science University Of Tokyo

• Mitsuda Setsuo

  Depertment Of Physics Science University Of Tokyo:guest Scientist At Bnl

• Mitsuda Setuo

  Department Of Physics Faculty Of Science Tokyo University Of Science

• Mitsuda Setsuo

  Department Of Physics Faculty Of Science Tokyo University Of Science Tokyo

• Mitsuda Setsuo

  Physics Department Science University Of Tokyo

• Mamiya K

  Department Of Physics Tokyo Metropolitan University

• Kohgi Masahumi

  Physics Department Tohoku University

• Oohara Yasuaki

  Laboratoire Leon Brillouin Cea-cnrs Cea

• Oohara Yasuaki

  Institude For Solid State Physics University Of Tokyo

• Takagi H

  Univ. Tokyo Tokyo Jpn

• Yoshizawa H

  Univ. Tokyo Ibaraki

• Yoshizawa H

  Dept. Of Biology Matsumoto Dental College

• TAKAHASHI Hiroki

  Institute of Advanced Energy, Kyoto University

• MORI Nobuo

  Institute of Solid State Physics, University of Tokyo

• SUZUKI Takashi

  Physics Department,Graduate School of Science,Tohoku University

• OSAKABE Toyotaka

  Japan Atomic Energy Agency

• Okayama Yasushi

  Institute for Solid State Physics, University of Tokyo

• Osakabe Toyotaka

  Physics Department, Tohoku University

• Haga Yoshinori

  Physics Department, Tohoku University

• Kasaya M

  Tohoku Univ. Sendai

• Mitsuda Setsuo

  Tokyo Univ. Sci. Tokyo

• OSAKABE Toyotaka

  Quantum Beam Science Directorate, Japan Atomic Energy Agency

• Haga Yoshinori

  Tohoku University

• Mori Nobuo

  Saitama Study Center The Open University Of Japan

• Mori Nobuo

  Institute Of Solid State Physics The University Of Tokyo

• Hatano T

  The Institute For Solid State Physics The University Of Tokyo

• Osakabe T

  Quantum Beam Science Directorate Japan Atomic Energy Agency

• Hashimoto T

  Nec Corp. Kanagawa Jpn

• Okayama Yasushi

  Institute For Solid State Physics University Of Tokyo

• Haga Y

  Inac/spsms Cea-grenoble

• Yoshizawa Hideki

  Institute For Solid State Physics The University Of Tokyo

• Mori N

  Saitama Study Center The Open University Of Japan

• Mori Nobuo

  Institute For Solid State Physics The University Of Tokyo

• Takahashi H

  Univ. Tokyo Chiba

• Kohgi M

  Tokyo Metropolitan Univ. Tokyo

• Oohara Y

  Department Of Physics Saga University

• Magishi Koichi

  Faculty Of Integrated Arts And Sciences The University Of Tokushima

• Haga Yoshinori

  Physics Department Tohoku University

• Mitsuda S

  Tokyo Univ. Sci. Tokyo

• Takahashi Hiroki

  Institute For Solid State Physics University Of Tokyo

• Takahashi Hiroki

  Saclay:Russian Research Center "Kurchatov Institute"

• Mori Nobuo

  Saitama Study Center, The Open University of Japan

• MORI Nobuo

  Institute for Solid State Physics (ISSP), University of Tokyo:(Present address)Department of Physics, Faculty of Science, Saitama University

• Takahashi Haruyuki

  Saclay:Russian Research Center "Kurchatov Institute"

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