Three-dimensional nature of normal and superconducting states in BaNi2P2 single crystals with the ThCr2Si2-type structure

被引：29
|
作者：
Tomioka, Y. [1 ,2 ]
Ishida, S. [1 ,2 ,3 ]
Nakajima, M. [1 ,2 ,3 ]
Ito, T. [1 ,2 ]
Kito, H. [1 ,2 ]
Iyo, A. [1 ,2 ]
Eisaki, H. [1 ,2 ]
Uchida, S. [3 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, NeRI, Tsukuba, Ibaraki 3058562, Japan
[2] JST, Transformat Res Project Iron Pnictides TRIP, Chiyoda Ku, Tokyo 1020075, Japan
[3] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1138656, Japan
来源：
PHYSICAL REVIEW B | 2009年 / 79卷 / 13期
关键词：
barium alloys; effective mass; electrical resistivity; flux pinning; Hall effect; magnetisation; nickel alloys; phosphorus alloys; superconducting critical field; superconducting materials; LAYERED SUPERCONDUCTOR; TEMPERATURE; DEPENDENCE; ANISOTROPY;
D O I：
10.1103/PhysRevB.79.132506
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Normal and superconducting states of BaNi2P2 single crystals (T-C similar to 2.4 K) have been studied. Anisotropy of resistivity is comparable with that of upper critical fields, indicating the effective mass estimated in the normal state is nearly the same as that in the superconducting state. From magnetization hysteresis with a weak vortex pinning, lower critical fields are estimated. Hall effect is explained by a two-carrier model consistent with a multiple-band with both hole and electron characters. It has been proved that BaNi2P2 is an anisotropic three-dimensional intermetallic superconductor.
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页数：4
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