High-pressure effect on the electrical resistivity in Formula Not Shown and Formula Not Shown

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• 作者：Nakashima ; Miho ; Tabata ; Kanehito ; Thamizhavel ; Arumugam ; C Kobayashi ; Tatsuo ; Hedo ; Masato ; et. al.
• 刊名：Physica B: Physics of Condensed Matter
• 出版年：2005
• 出版时间：April 30, 2005
• 年：2005
• 卷：359-361
• 期：Complete
• 页码：266-268
• 全文大小：193 K

文摘

We have measured the electrical resistivity of antiferromagnetic Kondo compounds CeNiGe₃ and CeNi₂Al₅ under pressure. In CeNiGe₃, Néel temperature T_N initially increases with increasing pressure P up to 3 GPa, then decreases rather steeply with further increasing pressure, and becomes zero at a critical pressure . The A and ρ₀ values of the resistivity ρ=ρ₀+AT² in the Fermi liquid relation become maximum around P_c. Superconductivity is found below 0.48 K in a wide pressure region from 4 to 10 GPa. In CeNi₂Al₅, the similar pressure dependence of T_N is found, has a maximum at 3.9 GPa, and becomes zero around 6 GPa.