MAGNETIZATION STUDIES OF THE INFLUENCE OF FAST-NEUTRON IRRADIATION ON CRITICAL CURRENT-DENSITY OF MELT-TEXTURED YBA2CU3O7-X

被引：7

作者：

PUZNIAK, R ^{[1
]}

WISNIEWSKI, A ^{[1
]}

SZYMCZAK, H ^{[1
]}

WANG, JR ^{[1
]}

ZHANG, PX ^{[1
]}

LIAN, Z ^{[1
]}

机构：

[1] NW INST NONFERROUS MET RES, SHAANXI 721014, PEOPLES R CHINA

来源：

APPLIED PHYSICS LETTERS | 1992年 / 61卷 / 17期

关键词：

D O I：

10.1063/1.108319

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The decrease of the magnetization hysteresis loop proportional to the decrease of the sample size was found for unirradiated and fast neutron irradiated bulk samples obtained from a powder melting process (PMP). This fact indicates that the superconducting current flows throughout the whole sample even when the magnetic field is applied. Thus, the critical current is not limited by field induced decoupling of the weak links. This is a consequence of specific microstructure of PMP samples. The increase of the critical current density by the factor of about 3 was observed after irradiation in magnetic field of 1 T in the examined temperature range from 60 to 85 K. The highest critical current density of the irradiated sample determined from magnetic measurements was equal to 5 X 10(4) A/cm2 in 1 T at 77 K.

引用

页码：2102 / 2104

页数：3

共 17 条

[1] UPPER CRITICAL MAGNETIC-FIELD OF Y1-2XCAXTHXBA2CU3O7-DELTA [J].

ANDERSSON, M ;

RAPP, O .

PHYSICA C, 1989, 162 :725-726

[2] ORIENTATION DEPENDENCE OF GRAIN-BOUNDARY CRITICAL CURRENTS IN YBA2CU3O7-DELTA BICRYSTALS [J].

DIMOS, D ;

CHAUDHARI, P ;

MANNHART, J ;

LEGOUES, FK .

PHYSICAL REVIEW LETTERS, 1988, 61 (02) :219-222

[3] HYSTERESIS IN SUPERCONDUCTING ALLOYS - TEMPERATURE AND FIELD DEPENDENCE OF DISLOCATION PINNING IN NIOBIUM ALLOYS [J].

FIETZ, WA ;

WEBB, WW .

PHYSICAL REVIEW, 1969, 178 (02) :657-&

[4]

Hor P. H., 1990, Modern Physics Letters B, V4, P703, DOI 10.1142/S021798499000088X

[5] HIGH CRITICAL CURRENTS IN Y-BA-CU-O SUPERCONDUCTORS [J].

JIN, S ;

TIEFEL, TH ;

SHERWOOD, RC ;

DAVIS, ME ;

VANDOVER, RB ;

KAMMLOTT, GW ;

FASTNACHT, RA ;

KEITH, HD .

APPLIED PHYSICS LETTERS, 1988, 52 (24) :2074-2076

[6] CRITICAL CURRENT AND RELAXATION OF ORIENTED GRAINED YBA2CU3O7-X AFTER FAST-NEUTRON IRRADIATION [J].

KUPFER, H ;

KELLER, C ;

MEIERHIRMER, R ;

SALAMA, K ;

SELVAMANICKAM, V ;

TARTAGLIA, GP .

IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (02) :1369-1374

[7] A NEW PROCESS WITH THE PROMISE OF HIGH-JC IN OXIDE SUPERCONDUCTORS [J].

MURAKAMI, M ;

MORITA, M ;

DOI, K ;

MIYAMOTO, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1989, 28 (07) :1189-1194

[8] NEUTRON-IRRADIATION DAMAGE EFFECT ON SUPERCONDUCTING AND NORMAL STATE PROPERTIES OF THE YBA2CU3O7 SYSTEM [J].

PRZYSLUPSKI, P ;

WISNIEWSKI, A ;

KOLESNIK, S ;

DOBROWOLSKI, W ;

PAJACZKOWSKA, A ;

PYTEL, K ;

PYTEL, B .

PHYSICA C, 1988, 153 (01) :345-346

[9] EPITAXIAL-GROWTH OF YBA2CU3O7-X THIN-FILMS BY A LASER EVAPORATION PROCESS [J].

ROAS, B ;

SCHULTZ, L ;

ENDRES, G .

APPLIED PHYSICS LETTERS, 1988, 53 (16) :1557-1559

[10] HIGH-CURRENT DENSITY IN BULK YBA2CU3OX SUPERCONDUCTOR [J].

SALAMA, K ;

SELVAMANICKAM, V ;

GAO, L ;

SUN, K .

APPLIED PHYSICS LETTERS, 1989, 54 (23) :2352-2354

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