Thermally induced magnetic vortex nucleation near the surface of type II superconductor

被引：3

作者：

Kuzovlev, YE ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Tech Phys, UA-340114 Donetsk, Ukraine

来源：

PHYSICA C | 1997年 / 292卷 / 1-2期

关键词：

D O I：

10.1016/S0921-4534(97)01702-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The free energy of a magnetic vortex with an arbitrary core shape near the surface of bulk superconductor is calculated. The contribution of the configurational entropy of the vortex core to the vortex free energy is estimated, as well as to the saddle-point free energy barrier which determines the probability of transformation of small virtual vortex nucleus into large viable vortex under the large thermally induced fluctuations of the core shape. (C) 1997 Elsevier Science B.V.

引用

页码：117 / 124

页数：8

共 7 条

[1] FLUCTUATIONS OF VORTICES IN LAYERED HIGH-TC SUPERCONDUCTORS [J].

BULAEVSKII, LN ;

LEDVIJ, M ;

KOGAN, VG .

PHYSICAL REVIEW LETTERS, 1992, 68 (25) :3773-3776

[2]

DEGENNES PG, SUPERCONDUCTIVITY ME

[3]

GALAIKO VP, 1966, ZH EKSP TEOR FIZ, V50, P1322

[4]

IVANCHENKO YM, 1979, FIZ TVERD TELA+, V21, P3445

[5] THERMALLY ACTIVATED PENETRATION OF MAGNETIC-FLUX THROUGH A SURFACE-BARRIER IN HIGH-TC SUPERCONDUCTORS [J].

KOSHELEV, AE .

PHYSICA C, 1992, 191 (1-2) :219-223

[6] THERMALLY ACTIVATED DEPINNING OF FLUX LINES FROM COLUMNAR DEFECTS [J].

KRAMER, A ;

KULIC, ML .

PHYSICAL REVIEW B, 1993, 48 (13) :9673-9676

[7]

SAMOKHVALOV AV, 1995, ZH EKSP TEOR FIZ+, V108, P1091

← 1 →