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
收藏
页码：3688 / 3693
页数：6
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