STRUCTURE AND PROPERTIES OF SUPERCONDUCTING AND NONSUPERCONDUCTING ALKALI-METAL FULLERIDES AXC60 (A = NA, K, RB, OR CS)

被引：0
|
作者：
WILEY, JB
HUANG, SM
CHO, S
DIEDERICH, F
WHETTEN, RL
HOLCZER, K
KANER, RB
机构：
[1] UNIV CALIF LOS ANGELES,DEPT CHEM & BIOCHEM,LOS ANGELES,CA 90024
[2] UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90024
[3] UNIV CALIF LOS ANGELES,CTR SOLID STATE SCI,LOS ANGELES,CA 90024
来源：
MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1992年 / 59卷
关键词：
D O I：
10.1002/masy.19920590133
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Shielding diamagnetism and X-ray powder diffraction were used to characterize alkali-metal fullerides of sodium, potassium, rubidium, and cesium. The superconducting phase in both the potassium and rubidium systems has the composition A3C60 and a face centered cubic structure with alkali metal filling all octahedral and tetrahedral sites of close packed C60 layers. High pressure magnetic susceptibility measurements on K3C60 showed a negative pressure dependence on the superconducting transition temperature of -0.78 K/kbar. No evidence for superconductivity was observed in either the sodium or cesium systems, even though Na3C60 appears isostructural with K3C60 and Rb3C60.
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页码：389 / 397
页数：9
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