NEW SUPERCONDUCTING SODIUM-NITROGEN-C60 TERNARY COMPOUND

被引：24
|
作者：
IMAEDA, K
KHAIRULLIN, II
YAKUSHI, K
NAGATA, M
MIZUTANI, N
KITAGAWA, H
INOKUCHI, H
机构：
[1] Institute for Molecular Science, Okazaki, 444, Myodaiji
来源：
SOLID STATE COMMUNICATIONS | 1993年 / 87卷 / 05期
关键词：
D O I：
10.1016/0038-1098(93)90780-Q
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have prepared sodium-doped C60 utilizing the thermal decomposition of sodium azide (NaN3). The strong low-Magnetic field microwave absorption with a clear hysteresis was observed in the samples of NanC60 (n=3-4), indicating the superconducting nature. By means of a SQUID measurement, the superconducting transition temperature is found to be around 12 K. Significantly, elemental analysis detected a nitrogen which was surely produced in the process of die thermal decomposition of NaN3. We suppose that this new superconducting phase will be NaxNyC60 where x is between 3 and 4, and y is unknown. This is the first superconducting material in Na-doped C60 without other alkali metals.
引用
收藏
页码：375 / 378
页数：4
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