EVIDENCE FOR INDIVIDUAL VORTEX PINNING IN CERAMIC YBA2CU3O7-DELTA

被引：7

作者：

TESSLER, LR ^{[1
]}

PROVOST, J ^{[1
]}

MAIGNAN, A ^{[1
]}

机构：

[1] INST SCI MAT & RAYONNEMENT,LAB CRISMAT,F-14032 CAEN,FRANCE

来源：

APPLIED PHYSICS LETTERS | 1991年 / 58卷 / 05期

关键词：

D O I：

10.1063/1.104576

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We measured the pinning force density F(p) in high quality YBa2Cu3 O7-delta ceramics as a function of the temperature and magnetic field up to 5 T. The results indicate that near 60 K the magnetic vortices are pinned individually. This implies that at this temperature the main pinning mechanism involves localized pinning centers separated by short distances rather than twin boundaries.

引用

页码：528 / 530

页数：3

共 12 条

[1] MAGNETIZATION OF HIGH-FIELD SUPERCONDUCTORS [J].

BEAN, CP .

REVIEWS OF MODERN PHYSICS, 1964, 36 (1P1) :31-+

[2] VORTEX STRUCTURE IN YBA2CU3O7 AND EVIDENCE FOR INTRINSIC PINNING [J].

DOLAN, GJ ;

CHANDRASHEKHAR, GV ;

DINGER, TR ;

FEILD, C ;

HOLTZBERG, F .

PHYSICAL REVIEW LETTERS, 1989, 62 (07) :827-830

[3] HREM STUDY OF THE DEFECTS IN THE ORTHORHOMBIC SUPERCONDUCTOR YBA2CU3O7 +/-EPSILON .2. OXYGEN SUBSTOICHIOMETRY AND CATIONIC DISORDER [J].

DOMENGES, B ;

HERVIEU, M ;

MICHEL, C ;

RAVEAU, B .

EUROPHYSICS LETTERS, 1987, 4 (02) :211-214

[4] EVIDENCE FROM MECHANICAL MEASUREMENTS FOR FLUX-LATTICE MELTING IN SINGLE-CRYSTAL YBA2CU3O7 AND BI2.2SR2CA0.8CU2O8 [J].

GAMMEL, PL ;

SCHNEEMEYER, LF ;

WASZCZAK, JV ;

BISHOP, DJ .

PHYSICAL REVIEW LETTERS, 1988, 61 (14) :1666-1669

[5] HREM STUDY OF THE DEFECTS IN THE ORTHORHOMBIC SUPERCONDUCTOR YBA2CU3O7 +/-EPSILON .1. OXYGEN OVERSTOICHIOMETRY [J].

HERVIEU, M ;

DOMENGES, B ;

MICHEL, C ;

RAVEAU, B .

EUROPHYSICS LETTERS, 1987, 4 (02) :205-210

[6]

HYLTON TL, UNPUB

[7] SCALING LAWS FOR FLUX PINNING IN HARD SUPERCONDUCTORS [J].

KRAMER, EJ .

JOURNAL OF APPLIED PHYSICS, 1973, 44 (03) :1360-1370

[8] DIRECT OBSERVATION OF DISSIPATIVE FLUX MOTION AND PINNING BY TWIN BOUNDARIES IN YBA2CU3O7-DELTA SINGLE-CRYSTALS [J].

KWOK, WK ;

WELP, U ;

CRABTREE, GW ;

VANDERVOORT, KG ;

HULSCHER, R ;

LIU, JZ .

PHYSICAL REVIEW LETTERS, 1990, 64 (08) :966-969

[9]

MANHART J, 1988, PHYS REV LETT, V61, P2476

[10] MAGNETIC PHASE-DIAGRAMS FOR HIGH TRANSITION-TEMPERATURE SUPERCONDUCTORS [J].

SOULEN, RJ ;

WOLF, SA .

PHYSICA C, 1990, 166 (1-2) :95-99

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