The high field ordered phase and upper critical field of the filled skutterudite system Pr(Os1-xRux)4Sb12

被引：5
|
作者：
Ho, P-C [1 ,2 ]
Butch, N. P. [1 ,2 ]
Zapf, V. S. [1 ,2 ]
Yanagisawa, T. [1 ,2 ]
Frederick, N. A. [1 ,2 ]
Kim, S. K. [1 ,2 ]
Yuhasz, W. M. [1 ,2 ]
Maple, M. B. [1 ,2 ]
Betts, J. B. [3 ]
Lacerda, A. H. [3 ]
机构：
[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA
[2] Univ Calif San Diego, Inst Pure & Appl Phys Sci, La Jolla, CA 92093 USA
[3] LANL, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2008年 / 20卷 / 21期
关键词：
D O I：
10.1088/0953-8984/20/21/215226
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
To study the possible competition between unconventional and Bardeen-Cooper-Schrieffer superconductivity in the filled skutterudites Pr(Os1-xRux)(4)Sb-12, the evolution of superconductivity and the high field ordered phase in single-crystal specimens has been investigated by means of electrical resistivity measurements in magnetic fields up to 18 T. Whereas the upper critical field H-c2(T) curves have conventional shapes for x < 0.4, the H-c2(T) curves are nearly linear for x greater than or similar to 0.4. For all x, H-c2(0) matches the calculated value of the orbital critical field. Features in the electrical resistivity associated with the high field ordered phase, observed clearly for PrOs4Sb12, weaken with increasing x and vanish for x greater than or similar to 0.1.
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页数：8
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