Superconductivity in an organic insulator at very high magnetic fields

被引：201

作者：

Balicas, L ^{[1
]}

Brooks, JS

Storr, K

Uji, S

Tokumoto, M

Tanaka, H

Kobayashi, H

Kobayashi, A

Barzykin, V

Gor'kov, LP

机构：

[1] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA

[2] Natl Res Inst Met, Tsukuba, Ibaraki 3050003, Japan

[3] Natl Inst Adv Ind Sci & Technol, Nanotechnol Res Inst, Tsukuba, Ibaraki 3058568, Japan

[4] Inst Mol Sci, Aichi 4448585, Japan

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

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.87.067002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate by electrical transport the field-induced superconducting state (FISC) in the organic conductor lambda-(BETS)(2)FeCl4. Below 4 K, antiferromagnetic-insulator, metallic, and eventually superconducting (FISC) ground states are observed with increasing in-plane magnetic field. The FISC state survives between 18 and 41 T and can be interpreted in terms of the Jaccarino-Peter effect, where the external magnetic field compensates the exchange field of aligned Fell ions. We further argue that the Fe3+ moments are essential to stabilize the resulting singlet, two-dimensional superconducting state.

引用

页码：670021 / 670024

页数：4

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