TRAPPED MAGNETIC-FLUX IN POLYCRYSTALLINE YBA2CU3O7

被引：12

作者：

KEITH, V

SMITH, HJT

机构：

[1] Physics Department, University of Waterloo, Waterloo, Ont.

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1993年 / 218卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0921-4534(93)90258-R

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements of the trapped flux (remanent magnetism) in polycrystalline YBa2Cu3O7 in the range 15-50 K show that at low applied field pulses, flux is trapped in the intergrain voids. A detailed measurement of a map of the remanent field over the whole surface of the sample shows that at very low fields flux is trapped in an asymmetrical and disordered way whereas when the maximum flux is trapped in the intergrain voids the trapped-flux distribution is symmetrical.

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页码：8 / 14

页数：7

相关论文

共 18 条

[1]

Barone A, 1982, PHYS APPL JOSEPHSON, P121

[2] MAGNETIZATION OF HARD SUPERCONDUCTORS [J].

BEAN, CP .

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

[3] TRAPPED MAGNETIC-FIELD AND CRITICAL CURRENT-DENSITY IN MELT-TEXTURED Y-BA-CU-O SUPERCONDUCTORS [J].

CHEN, IG ;

WEINSTEIN, R ;

LIU, JX .

PHYSICA C, 1991, 185 :2437-2438

[4] GRANULAR AND SUPERCONDUCTING-GLASS PROPERTIES OF THE HIGH-TEMPERATURE SUPERCONDUCTORS [J].

CLEM, JR .

PHYSICA C, 1988, 153 :50-55

[5] AMBEGAOKAR-BARATOFF-GINZBURG-LANDAU CROSSOVER EFFECTS ON THE CRITICAL CURRENT-DENSITY OF ANTIGRANULOCYTES SUPERCONDUCTORS [J].

CLEM, JR ;

BUMBLE, B ;

RAIDER, SI ;

GALLAGHER, WJ ;

SHIH, YC .

PHYSICAL REVIEW B, 1987, 35 (13) :6637-6642

[6] INTERGRAIN FLUX DISTRIBUTION, CREEP AND PINNING IN Y1BA2CU3O7/AG SUPERCONDUCTOR [J].

JUNG, J ;

MOHAMED, MAK ;

FRANCK, JP .

PHYSICA B-CONDENSED MATTER, 1990, 165 :1135-1136

[7] SPATIAL-DISTRIBUTION OF TRAPPED MAGNETIC-FLUX IN THE HIGH-TC SUPERCONDUCTOR Y1BA2CU3O7-DELTA [J].

KISU, T ;

ENPUKU, K ;

YOSHIDA, K ;

TAKEO, M ;

YAMAFUJI, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1987, 26 (08) :L1348-L1350

[8] JC MEASUREMENT OF Y1BA2CU3O7-X WITH A HALL SENSOR [J].

LIM, ZS ;

LEE, BW ;

LEE, S ;

KU, J ;

SHIN, HJ .

PHYSICA C, 1991, 185 :2301-2302

[9] SYSTEMATICS OF TRANSPORT CRITICAL-CURRENT-DENSITY HYSTERESIS IN POLYCRYSTALLINE Y-BA-CU-O [J].

MCHENRY, ME ;

MALEY, MP ;

WILLIS, JO .

PHYSICAL REVIEW B, 1989, 40 (04) :2666-2669

[10] TRAPPED FLUX, PERSISTENT CURRENT AND DIAMAGNETIC SHIELDING IN A RING AND A DISK OF Y1BA2CU3O7 [J].

MOHAMED, MAK ;

JUNG, J ;

FRANCK, JP .

PHYSICA C, 1989, 162 :1185-1186