SURFACE-BARRIER IN THE MIXED-STATE OF TYPE-II SUPERCONDUCTORS NEAR-EQUILIBRIUM

被引：36

作者：

KOSHELEV, AE ^{[1
]}

机构：

[1] MOSCOW SOLID STATE PHYS INST,CHERNOGOLOVKA 142432,RUSSIA

来源：

PHYSICA C | 1994年 / 223卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(94)91272-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have calculated the energy barrier for penetration of straight vortices through a plane surface into a type-II superconductor which contains an equilibrium vortex lattice. The most favorable penetration channel ends with the creation of a surface interstitial. The height of the barrier is strongly affected by the lattice deformations caused by the penetrating vortex. The proposed mechanism governs the penetration and exit of vortices through the edges of thin superconducting films. The results are in good agreement with experimental values of the barrier obtained by White et al. (Phys. Rev. Lett. 70 (1993) 670) from the edge resistivity of narrow strips of a-MoGe films.

引用

页码：276 / 282

页数：7

共 17 条

[1]

Abrikosov A. A., 1988, FUNDAMENTALS THEORY

[2] SURFACE BARRIER IN TYPE-2 SUPERCONDUCTORS [J].

BEAN, CP ;

LIVINGSTON, JD .

PHYSICAL REVIEW LETTERS, 1964, 12 (01) :14-&

[3] PROPERTIES OF THE DISTORTED FLUX-LINE LATTICE NEAR A PLANAR SURFACE [J].

BRANDT, EH .

JOURNAL OF LOW TEMPERATURE PHYSICS, 1981, 42 (5-6) :557-584

[4] BEAN-LIVINGSTON BARRIERS AND FIRST FIELD FOR FLUX-PENETRATION IN HIGH-TC CRYSTALS [J].

BURLACHKOV, L ;

KONCZYKOWSKI, M ;

YESHURUN, Y ;

HOLTZBERG, F .

JOURNAL OF APPLIED PHYSICS, 1991, 70 (10) :5759-5761

[5]

BURLACHKOV L, PREPRINT

[6]

Clem J. R., 1974, LOW TEMP PHYS, V13, P102

[7] VORTEX NUCLEATION IN TYPE II SUPERCONDUCTORS [J].

de Gennes, P. G. .

SOLID STATE COMMUNICATIONS, 1965, 3 (06) :127-130

[8]

GALAIKO VP, 1966, SOV PHYS JETP, V23, P1202

[9] EVIDENCE FOR SURFACE BARRIERS AND THEIR EFFECT ON IRREVERSIBILITY AND LOWER-CRITICAL-FIELD MEASUREMENTS IN Y-BA-CU-O CRYSTALS [J].

KONCZYKOWSKI, M ;

BURLACHKOV, LI ;

YESHURUN, Y ;

HOLTZBERG, F .

PHYSICAL REVIEW B, 1991, 43 (16) :13707-13710

[10] THE ROLE OF SURFACE EFFECTS IN MAGNETIZATION OF HIGH-TC SUPERCONDUCTORS [J].

KOPYLOV, VN ;

KOSHELEV, AE ;

SCHEGOLEV, IF ;

TOGONIDZE, TG .

PHYSICA C, 1990, 170 (3-4) :291-297

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