Superconducting properties and possible vortex phase diagram in a thick amorphous MgxB1-x film

被引：7

作者：

Okuma, S ^{[1
]}

Togo, S ^{[1
]}

Amemori, K ^{[1
]}

机构：

[1] Tokyo Inst Technol, Res Ctr Low Temp Phys, Meguro Ku, Tokyo 1528551, Japan

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2003年 / 17卷 / 18-20期

关键词：

vortex glass; quantum fluctuations; amorphous films;

D O I：

10.1142/S0217979203021629

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the superconducting properties in a thick amorphous MgxB1-x film, which was prepared by coevaporation of pure Mg and B. Measurements of the current-voltage characteristics and the AC complex resistivity in magnetic fields indicate the presence of the vortex-glass transition. Based on the data, we construct the possible phase diagram in the field-temperature plane. We find that there is the large vortex-liquid phase, which persists down to low temperatures.

引用

页码：3688 / 3693

页数：6

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