Hc2 of MgCNi3 determined from the specific heat and resistivity measurements

被引：5
|
作者：
Lin, JY [1 ]
Lin, PH
Ho, PL
Huang, HL
Zhang, YL
Yu, RC
Jin, CQ
Yang, HD
机构：
[1] Natl Chiao Tung Univ, Inst Phys, Hsinchu 300, Taiwan
[2] Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 804, Taiwan
[3] Chinese Acad Sci, Inst Phys, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China
[4] Chinese Acad Sci, Beijing High Pressure Res Ctr, Beijing 100080, Peoples R China
来源：
JOURNAL OF SUPERCONDUCTIVITY | 2002年 / 15卷 / 05期
关键词：
MgCNi3; H-c2; specific heat; order parameter; mixed state;
D O I：
10.1023/A:1021023725468
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
H-c2 of MgCNi3 has been determined from the specific heat C and resistivity rho measurements in the same sample. The results from rho are nearly identical with those determined from the anomaly in C. Furthermore, utilizing the relation gamma(H) proportional to H and the value of dgamma/dH, the obtained value of H-c2 is the same as that by the WHH model, if the spin paramagnetic effect and the spin-orbit interaction are taken into account. The results of this comparison have strong implications on the order parameter of MgCNi3.
引用
收藏
页码：485 / 488
页数：4
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