Superconductivity of layered organic compound β-(BDA-TTP)2SbF6, where BDA-TTP is 2,5-bis(1,3-dithian-2-ylidene)-1,3,4,6-tetrathiapentalene

被引：20
|
作者：
Shimojo, Y [1 ]
Ishiguro, T
Toita, T
Yamada, J
机构：
[1] Kyoto Univ, Dept Phys, Sakyo Ku, Kyoto 6068502, Japan
[2] JST, CREST, Kawaguchi 3320012, Japan
[3] Himeji Inst Technol, Dept Mat Sci, Himeji, Hyogo 6781297, Japan
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2002年 / 71卷 / 03期
关键词：
beta-(BDA-TTP)(2)SbF6; superconductivity; upper critical field; specific heat; coherence length;
D O I：
10.1143/JPSJ.71.717
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The superconductivity (SC) of a layered organic salt beta-(BDA-TTP)(2)SbF6 with a new donor molecule centered with tetrathiapentalene (TTP) has been characterized by the temperature dependence of the upper critical field H-c2(T) and the specific heat. The SC transition behaviors observed via the resistive and magnetic susceptibility measurements are different at finite temperatures, probably due to the influence of vortex dynamics. The SC parameters including the coherence lengths are evaluated based on the H-c2(0)'s in tire magnetic fields applied parallel and perpendicular to the SC plane, in combination with the specific heat data.
引用
收藏
页码：717 / 720
页数：4
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