Lower critical fields of alkali-metal-doped fullerene superconductors

被引：19

作者：

Buntar, V

Sauerzopf, FM

Weber, HW

机构：

[1] Atominstitut der Österreichischen Universitäten, Schüttelstrasse 115

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.54.R9651

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the lower critical field of fullerene superconductors derived from a ''trapped magnetic moment'' method. Superconducting K3C60, Rb3C60, and RbCs2C60 crystals and powders with shielding fractions between 3 and 100 % were investigated. In contrast to all previous investigations made by other methods, the values of H-c1 are much smaller and of the order of 1 mT at T=0. We show that the smallness of H-c1 is not related to Josephson junctions and granularity, but is an intrinsic property of the fullerenes.

引用

页码：R9651 / R9654

页数：4

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