Superconductivity in polycrystalline diamond thin films

被引：68

作者：

Takano, Y

Nagao, M

Takenouchi, T

Umezawa, H

Sakaguchi, I

Tachiki, M

Kawarada, H

机构：

[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

[2] Waseda Univ, Sch Sci & Engn, Tokyo 1698555, Japan

[3] Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan

来源：

关键词：

boron-doped diamond; superconductivity; semiconductivity; (111) orientation; metal-insulator transition;

D O I：

10.1016/j.diamond.2005.08.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Superconductivity was discovered in heavily boron-doped diamond thin films deposited by the microwave plasma assisted chemical vapor deposition (MPCVD) method. Advantages of the MPCVD deposited diamond are the controllability of boron concentration in a wide range, and a high boron concentration, especially in (111) oriented films, compared to that of the high-pressure high-temperature method. The superconducting transition temperatures are determined to be 8.7 K for T-c onset and 5.0 K for zero resistance by transport measurements. And the upper critical field is estimated to be around 7 T. (c) 2005 Published by Elsevier B.V.

引用

页码：1936 / 1938

页数：3

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