Flux trapping on multi-superconducting phase PAT12-C60-Rb composite: Low-field microwave absorption study

Hisashi Araki; Hirotake Kajii; Kazuya Tada; Anvar A. Zakhidov; Kyuya Yakushi; Tohru Sekino; Koichi Niihara; Katsumi Yoshino

doi:10.1016/S0038-1098(97)00271-8

Flux trapping on multi-superconducting phase PAT12-C₆₀-Rb composite: Low-field microwave absorption study

Hisashi Araki, Hirotake Kajii, Kazuya Tada, Anvar A. Zakhidov, Kyuya Yakushi, Tohru Sekino, Koichi Niihara, Katsumi Yoshino

Institute of Multidisciplinary Research for Advanced Materials (IMRAM)

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The in-phase and out-of-phase low field microwave absorption (LFMA) signals in a PAT12(C₆₀)_0.05Rb_x composite, consisting of superconducting granular Rb₃C₆₀ grains embedded in host poly(3-alkyltiophene) (PAT12) matrices, are investigated as functions of temperature and the intensity of trapped field. Temperature dependence of the peak field H_p of the out-of-phase and in-phase LFMA obeys the relation H_p∼{1 - (T/T_c2)}^1/4 and H_p∼{1 - (T/T_c1)⁴}^1/2 respectively, where T_c2 ( = 22 K) and T_c1 (=26 K) is the critical temperature of respective phase. Threshold field of the flux trapping in the out-of-phase and in-phase LFMA is nearly zero and 150 G respectively. These results support the previous models proposed for the origins of two phases presented in the K-doped CP-C₆₀ composites.

Original language	English
Pages (from-to)	607-614
Number of pages	8
Journal	Solid State Communications
Volume	103
Issue number	11
DOIs	https://doi.org/10.1016/S0038-1098(97)00271-8
Publication status	Published - 1997 Sep

Keywords

A. fullerenes
A. polymers
A. superconductors

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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Flux trapping on multi-superconducting phase PAT12-C₆₀-Rb composite : Low-field microwave absorption study. / Araki, Hisashi; Kajii, Hirotake; Tada, Kazuya; Zakhidov, Anvar A.; Yakushi, Kyuya; Sekino, Tohru; Niihara, Koichi; Yoshino, Katsumi.

In: Solid State Communications, Vol. 103, No. 11, 09.1997, p. 607-614.

Research output: Contribution to journal › Article › peer-review

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title = "Flux trapping on multi-superconducting phase PAT12-C60-Rb composite: Low-field microwave absorption study",

abstract = "The in-phase and out-of-phase low field microwave absorption (LFMA) signals in a PAT12(C60)0.05Rbx composite, consisting of superconducting granular Rb3C60 grains embedded in host poly(3-alkyltiophene) (PAT12) matrices, are investigated as functions of temperature and the intensity of trapped field. Temperature dependence of the peak field Hp of the out-of-phase and in-phase LFMA obeys the relation Hp∼{1 - (T/Tc2)}1/4 and Hp∼{1 - (T/Tc1)4}1/2 respectively, where Tc2 ( = 22 K) and Tc1 (=26 K) is the critical temperature of respective phase. Threshold field of the flux trapping in the out-of-phase and in-phase LFMA is nearly zero and 150 G respectively. These results support the previous models proposed for the origins of two phases presented in the K-doped CP-C60 composites.",

keywords = "A. fullerenes, A. polymers, A. superconductors",

author = "Hisashi Araki and Hirotake Kajii and Kazuya Tada and Zakhidov, {Anvar A.} and Kyuya Yakushi and Tohru Sekino and Koichi Niihara and Katsumi Yoshino",

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AU - Araki, Hisashi

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AU - Zakhidov, Anvar A.

AU - Yakushi, Kyuya

AU - Sekino, Tohru

AU - Niihara, Koichi

AU - Yoshino, Katsumi

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N2 - The in-phase and out-of-phase low field microwave absorption (LFMA) signals in a PAT12(C60)0.05Rbx composite, consisting of superconducting granular Rb3C60 grains embedded in host poly(3-alkyltiophene) (PAT12) matrices, are investigated as functions of temperature and the intensity of trapped field. Temperature dependence of the peak field Hp of the out-of-phase and in-phase LFMA obeys the relation Hp∼{1 - (T/Tc2)}1/4 and Hp∼{1 - (T/Tc1)4}1/2 respectively, where Tc2 ( = 22 K) and Tc1 (=26 K) is the critical temperature of respective phase. Threshold field of the flux trapping in the out-of-phase and in-phase LFMA is nearly zero and 150 G respectively. These results support the previous models proposed for the origins of two phases presented in the K-doped CP-C60 composites.

AB - The in-phase and out-of-phase low field microwave absorption (LFMA) signals in a PAT12(C60)0.05Rbx composite, consisting of superconducting granular Rb3C60 grains embedded in host poly(3-alkyltiophene) (PAT12) matrices, are investigated as functions of temperature and the intensity of trapped field. Temperature dependence of the peak field Hp of the out-of-phase and in-phase LFMA obeys the relation Hp∼{1 - (T/Tc2)}1/4 and Hp∼{1 - (T/Tc1)4}1/2 respectively, where Tc2 ( = 22 K) and Tc1 (=26 K) is the critical temperature of respective phase. Threshold field of the flux trapping in the out-of-phase and in-phase LFMA is nearly zero and 150 G respectively. These results support the previous models proposed for the origins of two phases presented in the K-doped CP-C60 composites.

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KW - A. superconductors

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