INTERGRANULAR CRITICAL-STATE IN UNIFORM JOSEPHSON-JUNCTION ARRAYS

被引：17

作者：

CHEN, DX ^{[1
]}

SANCHEZ, A ^{[1
]}

HERNANDO, A ^{[1
]}

机构：

[1] UNIV AUTONOMA BARCELONA, DEPT FIS, ELECTROMAGNETISME GRP, E-08193 BARCELONA, SPAIN

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1995年 / 250卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(95)00253-7

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Static intergranular magnetization curves of uniform slab-like Josephson junction arrays with a large junction-critical-current, I-max, and/or a large void area, A(V), are calculated as the fully relaxed solutions of a set of DC and AC Josephson equations with gauge-invariant phase differences. The curves always have an oscillatory component. When mu(0)A(V)I(max)/Phi(0) > 0.5, they are very similar to those calculated from the critical-state model of constant J(c). In this case, there are many possible static states under each given field, the intergranular critical state is the most effective static shielding state with a regional feature selected by dynamic shielding during previous field change. The implications of the results for the mechanism of the intergranular critical state in high-T-c superconductors are discussed.

引用

页码：107 / 120

页数：14

共 31 条

[1]

ABRIKOSOV AA, 1988, FUNDAMENTALS THEORY, P552

[2] NUMERICAL-SIMULATION OF MAGNETIC-FLUX PENETRATION IN CONCENTRIC CIRCULAR ARRAYS OF JOSEPHSON-JUNCTIONS [J].

AULETTA, C ;

DELUCA, R ;

PACE, S ;

RAICONI, G .

PHYSICAL REVIEW B, 1993, 47 (21) :14326-14333

[3] LOW-FIELD DIAMAGNETIC RESPONSE OF GRANULAR SUPERCONDUCTORS AT FINITE TEMPERATURES [J].

AULETTA, C ;

RAICONI, G ;

DELUCA, R ;

PACE, S .

PHYSICAL REVIEW B, 1994, 49 (17) :12311-12314

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

BEAN, CP .

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

[5] MAGNETIZATION OF HARD SUPERCONDUCTORS [J].

BEAN, CP .

PHYSICAL REVIEW LETTERS, 1962, 8 (06) :250-+

[6] AC SUSCEPTIBILITY AND MAGNETIZATION OF HIGH-TC SUPERCONDUCTORS - CRITICAL STATE MODEL FOR THE INTERGRANULAR REGION [J].

CALZONA, V ;

CIMBERLE, MR ;

FERDEGHINI, C ;

PUTTI, M ;

SIRI, AS .

PHYSICA C, 1989, 157 (03) :425-430

[7] AC SUSCEPTIBILITY OF GRAINS AND MATRIX FOR HIGH-TC SUPERCONDUCTORS [J].

CHEN, DX ;

SANCHEZ, A ;

PUIG, T ;

MARTINEZ, LM ;

MUNOZ, JS .

PHYSICA C, 1990, 168 (5-6) :652-667

[8] MAGNETIC-PROPERTIES OF SLAB-LIKE JOSEPHSON-JUNCTION ARRAYS [J].

CHEN, DX ;

SANCHEZ, A ;

HERNANDO, A .

PHYSICAL REVIEW B, 1994, 50 (18) :13735-13743

[9] MAGNETIZATION OF UNIFORM JOSEPHSON-JUNCTIONS [J].

CHEN, DX ;

HERNANDO, A .

PHYSICAL REVIEW B, 1994, 49 (01) :465-474

[10] MAGNETIC-SUSCEPTIBILITY OF SINTERED AND POWDERED Y-BA-CU-O [J].

CHEN, DX ;

GOLDFARB, RB ;

NOGUES, J ;

RAO, KV .

JOURNAL OF APPLIED PHYSICS, 1988, 63 (03) :980-983

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