Pressure-induced positive electrical resistivity coefficient in Ni-Nb-Zr-H glassy alloy

被引：3

作者：

Fukuhara, M. ^{[1
,2
]}

Gangli, C. ^{[3
]}

Matsubayashi, K. ^{[3
]}

Uwatoko, Y. ^{[3
]}

机构：

[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[2] Res Inst Electromagnet Mat, Sendai, Miyagi 9820807, Japan

[3] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 25期

关键词：

TRANSPORT BEHAVIORS; TRANSITION; TEMPERATURE;

D O I：

10.1063/1.4729574

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements under hydrostatic pressure of the electrical resistivity of (Ni0.36Nb0.24Zr0.40)(100-x)H-x (x = 9.8, 11.5, and 14) glassy alloys have been made in the range of 0-8 GPa and 0.5-300 K. The resistivity of the (Ni0.36Nb0.24Zr0.40)(86)H-14 alloy changed its sign from negative to positive under application of 2-8 GPa in the temperature range of 300-22 K, coming from electron-phonon interaction in the cluster structure under pressure, accompanied by deformation of the clusters. In temperature region below 22 K, the resistivity showed negative thermal coefficient resistance by Debye-Waller factor contribution, and superconductivity was observed at 1.5 K. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4729574]

引用

页数：3

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