Electrostatic tuning of the superconductor-insulator transition in two dimensions

被引：99

作者：

Parendo, KA ^{[1
]}

Sarwa, KH ^{[1
]}

Tan, B ^{[1
]}

Bhattacharya, A ^{[1
]}

Eblen-Zayas, M ^{[1
]}

Staley, NE ^{[1
]}

Goldman, AM ^{[1
]}

机构：

[1] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 19期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.94.197004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Superconductivity has been induced in insulating ultrathin films of amorphous bismuth using the electric field effect. The screening of the electron-electron interaction was found to increase with electron concentration in a manner correlated with the tendency towards superconductivity. This does not preclude an increase in the density of states being important in the development of superconductivity. The superconductor-insulator transition appears to belong to the universality class of the three dimensional XY model.

引用

页数：4

共 24 条

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