Magnetization curves for non-elliptic cylindrical samples in a transverse field

被引：2

作者：

Karmakar, D ^{[1
]}

Bhagwat, KV ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Tech Phys & Prototype Engn Div, Bombay 400085, Maharashtra, India

来源：

PRAMANA-JOURNAL OF PHYSICS | 2001年 / 56卷 / 01期

关键词：

magnetization curves; Bean's model; critical state model;

D O I：

10.1007/s12043-001-0147-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using recent results for the surface current density on cylindrical surfaces of arbitrary cross-section producing uniform interior magnetic field and an assumed set of flux-fronts, solutions of Bean's critical state model for cylindrical samples with non-elliptic cross-section are presented. Magnetization hysteresis loops for two cross-sections with different aspect ratios are obtained. A comparison with some exact results shows the limitations of this approach.

引用

页码：L127 / L135

页数：9

共 12 条

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

BEAN, CP .

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

[2] Current density on an arbitrary cylindrical surface producing transverse uniform interior field [J].

Bhagwat, KV ;

Karmakar, D .

EUROPHYSICS LETTERS, 2000, 49 (06) :715-721

[3] FLUX-PENETRATION IN SPHEROID SAMPLES - CRITICAL-STATE MODEL WITH FIELD-DEPENDENT CRITICAL-CURRENT DENSITY [J].

BHAGWAT, KV ;

CHADDAH, P .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1994, 224 (1-2) :155-167

[4] Flux penetration in thin superconducter films with field dependent critical current density [J].

Bhagwat, KV ;

Chaddah, P .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1997, 280 (1-2) :52-60

[5] MAGNETIZATION CURVES OF HARD SUPERCONDUCTOR SAMPLES WITH NON-ZERO DEMAGNETIZATION FACTOR [J].

BHAGWAT, KV ;

CHADDAH, P .

PRAMANA, 1989, 33 (04) :521-540

[6] TYPE-II-SUPERCONDUCTOR STRIP WITH CURRENT IN A PERPENDICULAR MAGNETIC-FIELD [J].

BRANDT, EH ;

INDENBOM, M .

PHYSICAL REVIEW B, 1993, 48 (17) :12893-12906

[7]

Brechna H., 1973, Superconducting Magnet Systems

[8] Theory of flux penetration into thin films with field-dependent critical current [J].

McDonald, J ;

Clem, JR .

PHYSICAL REVIEW B, 1996, 53 (13) :8643-8650

[9] INDUCTANCE MEASUREMENTS OF HTSC FILMS WITH HIGH CRITICAL CURRENTS [J].

MIKHEENKO, PN ;

KUZOVLEV, YE .

PHYSICA C, 1993, 204 (3-4) :229-236

[10]

POLYA G, 1978, PROBLEMS THEOREMS AN, V1, P129

← 1 2 →