FIELD-INDUCED 3D TO 2D CROSSOVER OF SHIELDING CURRENT PATH IN BI2SR2CACU2OX

被引：44

作者：

NAKAMURA, N

GU, GD

KOSHIZUKA, N

机构：

[1] Superconductivity Research Laboratory, International Superconductivity Technology Center, Koto-ku, Tokyo 135

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.71.915

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetization curves of high quality Bi2Sr2CaCu2Ox, single crystals in fields slightly misaligned with the ab plane show a peak at small fields (6 Oe at 5 K for misalignment angle of 6-degrees). This is attributed to flux penetration into the Josephson coupling between the CuO2 layers and a resultant three- to two-dimensional crossover of the shielding current path with the increase in the field. A surface barrier model for the interlayer flux penetration yields the anisotropy ratio gamma of almost-equal-to 700.

引用

页码：915 / 918

页数：4

共 20 条

[1] BCS VERSUS JOSEPHSON PAIR HOPPING BETWEEN THE CUO2 LAYERS IN HIGH-TC SUPERCONDUCTORS [J].

APPEL, J ;

FAY, D .

PHYSICAL REVIEW B, 1990, 41 (01) :873-876

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

BEAN, CP ;

LIVINGSTON, JD .

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

[3] PARALLEL FIELD PENETRATION IN A LAYERED SUPERCONDUCTOR [J].

BUZDIN, A ;

FEINBERG, D .

PHYSICS LETTERS A, 1992, 165 (03) :281-284

[4] FLUX VORTICES AND TRANSPORT CURRENTS IN TYPE II SUPERCONDUCTORS [J].

CAMPBELL, AM ;

EVETTS, JE .

ADVANCES IN PHYSICS, 1972, 21 (90) :199-+

[5] FLUX-CREEP CROSSOVER AND RELAXATION OVER SURFACE BARRIERS IN BI2SR2CACU2O8 CRYSTALS [J].

CHIKUMOTO, N ;

KONCZYKOWSKI, M ;

MOTOHIRA, N ;

MALOZEMOFF, AP .

PHYSICAL REVIEW LETTERS, 1992, 69 (08) :1260-1263

[6] DIRECT EVIDENCE FOR A VERY LARGE PENETRATION DEPTH IN SUPERCONDUCTING BI2SR2CACU2O8 SINGLE-CRYSTALS [J].

COOPER, JR ;

FORRO, L ;

KESZEI, B .

NATURE, 1990, 343 (6257) :444-446

[7]

de Gennes P. G., 1966, SUPERCONDUCTIVITY ME

[8] 2D TO 3D CROSSOVER IN BI-SR-CA-CU-O - COMPARISON WITH SYNTHETIC MULTILAYERED SUPERCONDUCTORS [J].

FASTAMPA, R ;

GIURA, M ;

MARCON, R ;

SILVA, E .

PHYSICAL REVIEW LETTERS, 1991, 67 (13) :1795-1798

[9] LARGE SINGLE-CRYSTAL BI-2212 ALONG THE C-AXIS PREPARED BY FLOATING ZONE METHOD [J].

GU, GD ;

TAKAMUKU, K ;

KOSHIZUKA, N ;

TANAKA, S .

JOURNAL OF CRYSTAL GROWTH, 1993, 130 (1-2) :325-329

[10] DISSIPATION IN HIGHLY ANISOTROPIC SUPERCONDUCTORS [J].

KES, PH ;

AARTS, J ;

VINOKUR, VM ;

VANDERBEEK, CJ .

PHYSICAL REVIEW LETTERS, 1990, 64 (09) :1063-1066

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