Superconductivity in the ladder material Sr0.4Ca13.6Cu24O41.84

被引：717
作者：
Uehara, M
Nagata, T
Akimitsu, J
Takahashi, H
Mori, N
Kinoshita, K
机构：
[1] UNIV TOKYO, INST SOLID STATE PHYS, MINATO KU, TOKYO 106, JAPAN
[2] NIPPON TELEGRAPH & TEL PUBL CORP, BASIC RES LABS, ATSUGI, KANAGAWA 24301, JAPAN
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1996年 / 65卷 / 09期
关键词：
superconductivity; ladder system; (Sr; Ca)(14)Cu24O4-10 delta high-pressure experiment;
D O I：
10.1143/JPSJ.65.2764
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have observed superconductivity in the ladder material Sr0.4Ca13.6Cu24O41.84 under pressures of 3 GPa and 4.5 GPa by means of electrical measurements. The superconducting transition temperatures T-c (onset) are 12 K and 9 K at 3 and 4.5 GPa, respectively. The superconducting volume fraction was obtained to be about 5% from magnetization measurement under 3.5 GPa at 4.2 K, indicating the bulk nature of the superconductivity in this system.
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页码：2764 / 2767
页数：4
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