FLUX-PINNING POTENTIAL AND ITS MEASUREMENT FROM MAGNETIZATION DECAY

被引：15

作者：

CHADDAH, P

BHAGWAT, KV

机构：

[1] Solid State Physics Division, Bhabha Atomic Research Centre

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.43.6239

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present calculations of the magnetization decay for a zero-field-cooled sample subject to a field H. The calculations are within the framework of the critical-state model and assume that the current density decays exponentially with the field. The results provide a possible explanation for the reported anomalous increase of the pinning potential with field and temperature.

引用

收藏

页码：6239 / 6241

页数：3

相关论文

共 29 条

[21] MAGNETIC-RELAXATION EFFECTS IN PBMO6S8 SUPERCONDUCTING SINGLE-CRYSTALS - A COMPARISON WITH HIGH-TC SUPERCONDUCTORS [J].

ROSSEL, C ;

SANDVOLD, E ;

SERGENT, M ;

CHEVREL, R ;

POTEL, M .

PHYSICA C, 1990, 165 (3-4) :233-240

[22] TEMPERATURE AND FIELD-DEPENDENCE OF MAGNETIC-RELAXATION IN A BI2SR2CACU2OX SINGLE-CRYSTAL [J].

SHI, DL ;

MING, X ;

UMEZAWA, A ;

FOX, RF .

PHYSICAL REVIEW B, 1990, 42 (04) :2062-2065

[23] TIME-DEPENDENT MAGNETIZATION OF A SUPERCONDUCTING GLASS [J].

TUOMINEN, M ;

GOLDMAN, AM ;

MECARTNEY, ML .

PHYSICAL REVIEW B, 1988, 37 (01) :548-551

[24]

WELCH DO, 1990, 2ND P INT S SUP TSUK, P655

[25] CALCULATIONS OF MAGNETIC-RELAXATION IN TYPE-II SUPERCONDUCTORS BASED ON VARIOUS CRITICAL-STATE MODELS [J].

XU, M ;

SHI, D .

PHYSICA C, 1990, 168 (3-4) :303-308

[26] GENERALIZED CRITICAL-STATE MODEL FOR HARD SUPERCONDUCTORS [J].

XU, M ;

SHI, DL ;

FOX, RF .

PHYSICAL REVIEW B, 1990, 42 (16) :10773-10776

[27] MAGNETIC-FIELD AND TEMPERATURE-DEPENDENCE OF MAGNETIC-FLUX CREEP IN C-AXIS-ORIENTED YBA2CU3O7 POWDER [J].

XU, YW ;

SUENAGA, M ;

MOODENBAUGH, AR ;

WELCH, DO .

PHYSICAL REVIEW B, 1989, 40 (16) :10882-10890

[28] GIANT FLUX CREEP AND IRREVERSIBILITY IN AN Y-BA-CU-O CRYSTAL - AN ALTERNATIVE TO THE SUPERCONDUCTING-GLASS MODEL [J].

YESHURUN, Y ;

MALOZEMOFF, AP .

PHYSICAL REVIEW LETTERS, 1988, 60 (21) :2202-2205

[29] MAGNETIC-RELAXATION AND THE LOWER CRITICAL FIELDS IN A Y-BA-CU-O CRYSTAL [J].

YESHURUN, Y ;

MALOZEMOFF, AP ;

HOLTZBERG, F ;

DINGER, TR .

PHYSICAL REVIEW B, 1988, 38 (16) :11828-11831