- 著者
-
Araki Hisashi
* Anvar
Saiki Eiji
Yamasaki Nobuo
Yakushi Kyuya
Yoshino Katsumi
- 出版者
- 社団法人応用物理学会
- 雑誌
- Japanese journal of applied physics. Pt. 2, Letters (ISSN:00214922)
- 巻号頁・発行日
- vol.34, no.8, pp.L1041-L1044, 1995-08-15
- 参考文献数
- 22
- 被引用文献数
-
16
Superconductivity in poly(3-alkylthiophene)- C60 composite (PAT- C60) is found upon doping by potassium from vapor phase. The superconducting (SC) transition at T C=17 K is detected by superconducting quantum interference device (SQUID), which showed 0.8% of SC fraction for C60 content of 5 mol%. An exceptionally strong low-field microwave absorption (LFMA) implies the existence of granular SC phase. A rather small hysteresis of LFMA indicates the important role of the Josephson weak link network, probably formed between SC K xC60 clusters separated by conductive K xPAT barriers. ESR of PAT(C60) yK x composite shows two types of lines: one from negative polarons P- in PAT chains, and another assigned to K xC60 clusters and C1-60 radical.