Dual-action molecular superconductors with magnetic anions

被引：39

作者：

Zhang, B

Tanaka, H

Fujiwara, H

Kobayashi, H ^{[1
]}

Fujiwara, E

Kobayashi, A

机构：

[1] Inst Mol Sci, Okazaki, Aichi 4448585, Japan

[2] Univ Tokyo, Grad Sch Sci, Res Ctr Spectrochem, Bunkyo Ku, Tokyo 1130033, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2002年 / 124卷 / 34期

关键词：

D O I：

10.1021/ja026911l

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Dual-action organic superconductors, whose conducting properties can be sharply controlled by an external magnetic field, have been discovered in systems consisting of organic conduction layers based on bis(ethylenedithio)tetraselenafulvalene (BETS) molecules and magnetic anions. Owing to the metamagnetic nature of the anion layers, the superconducting state of κ-BETS2FeBr4 can be switched on or off by applying the external field. In λ-BETS2Fe0.4Ga0.6Cl4, exhibiting a field-induced superconducting transition for the field parallel to the conduction plane, the insulating, metallic, and superconducting states can be realized in a stepwise manner by slightly tuning the external magnetic field. Copyright © 2002 American Chemical Society.

引用

收藏

页码：9982 / 9983

页数：2

相关论文

共 20 条

[1] Superconductivity in an organic insulator at very high magnetic fields [J].

Balicas, L ;

Brooks, JS ;

Storr, K ;

Uji, S ;

Tokumoto, M ;

Tanaka, H ;

Kobayashi, H ;

Kobayashi, A ;

Barzykin, V ;

Gor'kov, LP .

PHYSICAL REVIEW LETTERS, 2001, 87 (06) :670021-670024

[2] Interplay between chains of S=5/2 localised spins and two-dimensional sheets of organic donors in the synthetically built magnetic multilayer λ-(BETS)2FeCl4 [J].

Brossard, L ;

Clerac, R ;

Coulon, C ;

Tokumoto, M ;

Ziman, T ;

Petrov, DK ;

Laukhin, VN ;

Naughton, MJ ;

Audouard, A ;

Goze, F ;

Kobayashi, A ;

Kobayashi, H ;

Cassoux, P .

EUROPEAN PHYSICAL JOURNAL B, 1998, 1 (04) :439-452

[3] Magnetic-field-induced superconductivity in layered organic molecular crystals with localized magnetic moments -: art. no. 100502 [J].

Cépas, O ;

McKenzie, RH ;

Merino, J .

PHYSICAL REVIEW B, 2002, 65 (10) :1005021-1005024

[4] Coexistence of ferromagnetism and metallic conductivity in a molecule-based layered compound [J].

Coronado, E ;

Galán-Mascarós, JR ;

Gómez-García, CJ ;

Laukhin, V .

NATURE, 2000, 408 (6811) :447-449

[5] A novel antiferromagnetic organic superconductor κ-(BETS)2FeBr4 [where BETS = bis(ethylenedithio)tetraselenafulvalene] [J].

Fujiwara, H ;

Fujiwara, E ;

Nakazawa, Y ;

Narymbetov, BZ ;

Kato, K ;

Kobayashi, H ;

Kobayashi, A ;

Tokumoto, M ;

Cassoux, P .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (02) :306-314

[6] An indication of magnetic-field-induced superconductivity in a bifunctional layered organic conductor, κ-(BETS)2FeBr4 [J].

Fujiwara, H ;

Kobayashi, H ;

Fujiwara, E ;

Kobayashi, A .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (24) :6816-6817

[7] ULTRA-HIGH-FIELD SUPERCONDUCTIVITY [J].

JACCARINO, V ;

PETER, M .

PHYSICAL REVIEW LETTERS, 1962, 9 (07) :290-+

[8] BETS as a source of molecular magnetic superconductors (BETS = bis(ethylenedithio)tetraselenafulvalene) [J].

Kobayashi, H ;

Kobayashi, A ;

Cassoux, P .

CHEMICAL SOCIETY REVIEWS, 2000, 29 (05) :325-333

[9] Superconductor-to-insulator transition in an organic metal incorporating magnetic anions:: λ-(BETS)2(FexGa1-x)Cl4 [BETS = bis(ethylenedithio)tetraselenafulvalene;: x≈0.55 and 0.43] [J].

Kobayashi, H ;

Sato, A ;

Arai, E ;

Akutsu, H ;

Kobayashi, A ;

Cassoux, P .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (50) :12392-12393

[10] New BETS conductors with magnetic anions (BETS equivalent to bis(ethylenedithio)tetraselenafulvalene) [J].

Kobayashi, H ;

Tomita, H ;

Naito, T ;

Kobayashi, A ;

Sakai, F ;

Watanabe, T ;

Cassoux, P .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (02) :368-377