GRANULAR SUPERCONDUCTIVITY IN A CONDUCTING POLYMER-FULLERENE-ALKALI METAL COMPOSITE

被引：19

作者：

ZAKHIDOV, AA ^{[1
]}

ARAKI, H ^{[1
]}

TADA, K ^{[1
]}

YAKUSHI, K ^{[1
]}

YOSHINO, K ^{[1
]}

机构：

[1] INST MOLEC SCI,OKAZAKI,AICHI 444,JAPAN

来源：

PHYSICS LETTERS A | 1995年 / 205卷 / 04期

关键词：

SUPERCONDUCTOR; GRANULARITY; CONDUCTING POLYMER; FULLERENE; N-TYPE DOPING; MICROWAVE ABSORPTION; SQUID; COMPOSITE FILM;

D O I：

10.1016/0375-9601(95)00565-K

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A superconducting (SC) phase is found in poly(3-alkylthiophene)-(C-60)(y)-K-x composites by both low field microwave absorption (LFMA) and SQUID magnetometry. T-C varies from 12 to 17 K depending on y and x: T-C(y = 0.05)= 17 K, at optimal x. LFMA shows phase reversal just below T-C in composites with y > 0.025 indicating the granular SC phase of disordered K3C60 clusters. The possibility of a two-component SC phase in which the electrons of conducting polymer chains are actively involved in SC pairing induced via hybridization with C-60 molecules is discussed for the case y < 0.005.

引用

页码：317 / 326

页数：10

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