Superconductivity in K3Ba3C60

被引：30

作者：

Iwasa, Y

Hayashi, H

Furudate, T

Mitani, T

机构：

[1] Japan Advanced Institute of Science and Technology, Tatsunokuchi

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.54.14960

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report superconductivity of ternary fulleride synthesized by intercalation of potassium into Ba3C60. Bulk superconductivity with the onset temperature at 5.6 K was observed in K3Ba3C60, which forms a body-centered-cubic (bcc) lattice with the cell parameter of a=11.24 Angstrom. Naive electron counting predicts that the Fermi level of K3Ba3C60 is at the center of the t1g-derived band, in shapr contrast with also superconducting Ba6C60. This result indicates that the superconductivity of fullerides occurs at the half-filled states both of t(1g)-and t(1g)-derived bands.

引用

页码：14960 / 14962

页数：3

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