Pressure induced Kondo coherence effect in Ce₂Pd₃Si₅

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• 作者：Melike Abliz ; Masato Hedo ; Jiro Kitagawa ; Yoshiya Uwatoko and Masayasu Ishikawa
• 关键词：Magnetic ordering ; Kondo effects ; High pressure ; QCP
• 刊名：Journal of Alloys and Compounds
• 出版年：2006
• 出版时间：9 February 2006
• 年：2006
• 卷：408-412
• 期：Complete
• 页码：241-243
• 全文大小：104 K

文摘

Ce₂Pd₃Si₅ is a new Kondo lattice compound that shows antiferromagnetic ordering at 8.4 K. We have performed the resistances measurement of Ce₂Pd₃Si₅ under pressure up to 8 GPa in the interval 2.5–300 K. The hydrostatic pressure was generated by employing a cubic anvil cell. The quantum critical point (QCP) exists around 6 GPa for this system, but the superconductivity is not observed. However, the result reveals the Kondo temperature increases after vanishing the magnetic ordering at around QCP due to the Kondo coherence effect under pressure.