Global Phase Diagram of the Magnetic Field-Induced Organic Superconductors λ-(BETS)2FexGa1−xCl4

Shinya Uji; Taichi Terashima; Chieko Terakura; Taro Yakabe; Yoshikazu Terai; Syuma Yasuzuka; Yasutaka Imanaka; Madoka Tokumoto; Akiko Kobayashi; Fumiko Sakai; Hisashi Tanaka; Hayao Kobayashi; Luis Balicas; James S. Brooks

doi:10.1143/jpsj.72.369

Global Phase Diagram of the Magnetic Field-Induced Organic Superconductors λ-(BETS)₂Fe_xGa_1−xCl₄

Shinya Uji, Taichi Terashima, Chieko Terakura, Taro Yakabe, Yoshikazu Terai, Syuma Yasuzuka, Yasutaka Imanaka, Madoka Tokumoto, Akiko Kobayashi, Fumiko Sakai, Hisashi Tanaka, Hayao Kobayashi, Luis Balicas, James S. Brooks

著者情報

キーワード: Organic conductor, superconductivity, Jaccarino-Peter effect, high magnetic field

ジャーナル認証あり

2003 年 72 巻 2 号 p. 369-373

DOI https://doi.org/10.1143/jpsj.72.369

詳細

抄録

Organic alloys λ-(BETS)₂Fe_xGa_1−xCl₄ show superconductivity only under very high magnetic fields parallel to the conducting layer for x≥0.47. As x decreases, the field induced superconducting phase shifts towards lower fields and a striking field-induced insulator to superconductor transition is observed below 4 T for x=0.45. We show that the overall features of the global phase diagram are well understood in terms of Jaccarino-Peter compensation mechanism. These results provide a new road map for the future design of high magnetic field superconductors.

責任著者(Corresponding author)

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