Precise study of vortex structures in Nb by small-angle neutron scattering

被引：0

作者：

Miyata, S ^{[1
]}

Osamura, K

Suzuki, J

机构：

[1] Kyoto Univ, Dept Mat Sci & Engn, Kyoto 6068501, Japan

[2] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2001年 / 70卷 / 07期

关键词：

vortex structure; penetration depth; niobium; conventional superconductor; small-angle neutron scattering;

D O I：

10.1143/JPSJ.70.2098

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The microscopic magnetic structure of a vortex in a Nb single crystal was investigated using small-angle neutron scattering by measuring higher order reflections. By fitting-the experimental scattering intensities, the magnetic structure of a vortex can be represented by the London equation with an additional Gaussian factor due to the thermal displacement of vortices. The radius of a vortex (20.3 nm at 3.3 K) is somewhat smaller than the London penetration depth (lambda (L) (0) = 31.5-39.0 nm).

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页码：2098 / 2101

页数：4

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