Observation of vortex pinning in YNi2B2C by LT-STS

被引：0
|
作者：
Sakata, H [1 ]
Oosawa, M
Nishida, N
Takeya, H
Hirata, K
机构：
[1] Sci Univ Tokyo, Tokyo 1628601, Japan
[2] Tokyo Inst Technol, Tokyo 1528551, Japan
[3] Natl Inst Mat Sci, Sengen, Ibaraki 3050047, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2003年 / 388卷
关键词：
scanning tunneling microscopy; scanning tunneling spectroscopy; vortex; pinning; YNi2B2C;
D O I：
10.1016/S0921-4534(02)02726-0
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The scanning tunneling spectroscopy measurements have been performed on the cut or cracked surface of YNi2B2C at 4.2 K in magnetic fields. The map of the quasiparticle density of states at the Fermi energy has revealed the vortex cores and the semiconducting precipitates. When the applied magnetic field is increased at 4.2 K, the enhancement of the local density of states has been observed along the boundary of the semiconducting precipitate. This enhancement is attributed to a number of pinned vortices at the boundary. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：199 / 200
页数：2
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