Flux-line pinning by point defects in anisotropic biaxial type-II superconductors

被引：18

作者：

Mikitik, G. P. ^{[1
,2
]}

Brandt, E. H. ^{[1
]}

机构：

[1] Max Planck Inst Met Res, D-70506 Stuttgart, Germany

[2] B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 02期

关键词：

critical current density (superconductivity); flux pinning; point defects; VORTEX LATTICE; TEMPERATURE; VORTICES;

D O I：

10.1103/PhysRevB.79.020506

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The pinning force for an arbitrarily oriented individual vortex in a biaxial type-II superconductor is calculated from the collective pinning theory. It is shown that in anisotropic superconductors the critical force at which the vortex starts to move can be smaller than the pinning force since the vortex will move at an angle to the acting force. Explicit expressions for this angle and for the critical force and critical current density are given.

引用

页数：4

共 11 条

[1] Mechanics of individual isolated vortices in a cuprate superconductor [J].

Auslaender, Ophir M. ;

Luan, Lan ;

Straver, Eric W. J. ;

Hoffman, Jennifer E. ;

Koshnick, Nicholas C. ;

Zeldov, Eli ;

Bonn, Douglas A. ;

Liang, Ruixing ;

Hardy, Walter N. ;

Moler, Kathryn A. .

NATURE PHYSICS, 2009, 5 (01) :35-39

[2] VORTICES IN HIGH-TEMPERATURE SUPERCONDUCTORS [J].

BLATTER, G ;

FEIGELMAN, MV ;

GESHKENBEIN, VB ;

LARKIN, AI ;

VINOKUR, VM .

REVIEWS OF MODERN PHYSICS, 1994, 66 (04) :1125-1388

[3] QUANTUM COLLECTIVE CREEP - EFFECTS OF ANISOTROPY, LAYERING, AND FINITE TEMPERATURE [J].

BLATTER, G ;

GESHKENBEIN, V .

PHYSICAL REVIEW B, 1993, 47 (05) :2725-2741

[4] FROM ISOTROPIC TO ANISOTROPIC SUPERCONDUCTORS - A SCALING APPROACH [J].

BLATTER, G ;

GESHKENBEIN, VB ;

LARKIN, AI .

PHYSICAL REVIEW LETTERS, 1992, 68 (06) :875-878

[5] THE FLUX-LINE-LATTICE IN SUPERCONDUCTORS [J].

BRANDT, EH .

REPORTS ON PROGRESS IN PHYSICS, 1995, 58 (11) :1465-1594

[6] LARGE RANGE OF VALIDITY OF LINEAR ELASTICITY OF THE VORTEX LATTICE IN HIGH-T(C) SUPERCONDUCTORS [J].

BRANDT, EH .

PHYSICAL REVIEW LETTERS, 1992, 69 (07) :1105-1108

[7] STRUCTURE OF VORTEX LATTICE IN BIAXIAL SUPERCONDUCTORS [J].

BURLACHKOV, LI .

EUROPHYSICS LETTERS, 1989, 8 (07) :673-677

[8]

GRISHIN AM, 1983, SOV J LOW TEMP PHYS, V9, P138

[9] Critical state in thin anisotropic superconductors of arbitrary shape [J].

Mikitik, GP ;

Brandt, EH .

PHYSICAL REVIEW B, 2000, 62 (10) :6800-6811

[10] Absolute values of the London penetration depth in YBa2Cu3O6+y measured by zero field ESR spectroscopy on Gd doped single crystals -: art. no. 184513 [J].

Pereg-Barnea, T ;

Turner, PJ ;

Harris, R ;

Mullins, GK ;

Bobowski, JS ;

Raudsepp, M ;

Liang, RX ;

Bonn, DA ;

Hardy, WN .

PHYSICAL REVIEW B, 2004, 69 (18) :184513-1

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