Superconductivity of Fullerides AnHgxC60 (A = K,Rb,Cs; n = 2,3) Synthesized from Amalgams

被引：7
|
作者：
Bulychev, B. M. [1 ]
Kulbachinskii, V. A. [1 ]
Lunin, R. A. [1 ]
Kytin, V. G. [1 ]
Velikodny, Yu. A. [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Moscow 119991, Russia
来源：
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES | 2010年 / 18卷 / 4-6期
关键词：
Amalgams; EPR; Fulleride; Superconductivity; X-ray; C-60; RB;
D O I：
10.1080/1536383X.2010.487435
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The fullerides A(n)Hg(x)C(60) (A - K,Rb,Cs; n - 2,3; x<1) have been synthesized by a new method using liquid alloys of metals with mercury (amalgams). It was found that the fulleride K2HgxC60 is superconductor with transition temperature T-c = 22 K that exceeds T-c for K3C60 (19 K). The fulleride K3HgxC60 is not superconductor and has monoclinic crystal lattice. The fullerides RbnHgxC60 (n = 2,3) are superconductors with T-c = 24-25 K that is less than T-c = 28 K for Rb3C60. The fullerides with composition CsnHgxC60 (n = 2,3) are not superconductors and crystallize in orthorhombic lattices. The density of electronic states at Fermi energy was estimated from EPR data.
引用
收藏
页码：381 / 385
页数：5
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