PROPERTIES OF YB-BA-CU-O SUPERCONDUCTORS PREPARED BY A PLASMA-ARC MELTING AND RAPID QUENCHING METHOD

被引：14

作者：

KAMINO, M

TAKAHASHI, K

YOKOO, T

YOSHISATO, Y

NAKANO, S

机构：

[1] Functional Materials Research Center, SANYO Electric Co. Ltd., Hirakata, Osaka

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1990年 / 29卷 / 04期

关键词：

Amorphous; Critical temperature; Flux creep; Magnetic relaxation; Oxide superconductor;

D O I：

10.1143/JJAP.29.L580

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A PMQ (plasma-arc melting and rapid quenching) method has been successfully developed to obtain homogeneous and highly dense Yb-Ba-Cu-O compounds through the crystallization of the superconducting phase from the amorphouslike state. The maximum Tcof 91 K and packing density of 7.14 g/cm3(98% of the theoretical density 7.27 g/cm3) were produced by this method. Furthermore, a large activation energy of 1.5 eV was observed by magnetic relaxation measurements. © 1990 IOP Publishing Ltd.

引用

页码：L580 / L582

页数：3

共 12 条

[1] MAGNETIZATION OF HARD SUPERCONDUCTORS [J].

BEAN, CP .

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

[2] FLUX CREEP IN TYPE-2 SUPERCONDUCTORS [J].

BEASLEY, MR ;

LABUSCH, R ;

WEBB, WW .

PHYSICAL REVIEW, 1969, 181 (02) :682-&

[3] ORIGIN OF SUPERCONDUCTIVE GLASSY STATE AND EXTRINSIC CRITICAL CURRENTS IN HIGH-TC OXIDES [J].

DEUTSCHER, G ;

MULLER, KA .

PHYSICAL REVIEW LETTERS, 1987, 59 (15) :1745-1747

[4] FABRICATION OF DENSE BA2YCU3O7-DELTA SUPERCONDUCTOR WIRE BY MOLTEN OXIDE PROCESSING [J].

JIN, S ;

TIEFEL, TH ;

SHERWOOD, RC ;

KAMMLOTT, GW ;

ZAHURAK, SM .

APPLIED PHYSICS LETTERS, 1987, 51 (12) :943-945

[5] SUPERCONDUCTIVITY AT 95-K IN THE NEW YB-BA-CU OXIDE SYSTEM [J].

KITAZAWA, K ;

KISHIO, K ;

TAKAGI, H ;

HASEGAWA, T ;

KANBE, S ;

UCHIDA, S ;

TANAKA, S ;

FUEKI, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1987, 26 (04) :L339-L341

[6] CRITICAL CURRENT DENSITIES IN SUPERCONDUCTING Y-BA-CU-O PREPARED BY THE QUENCH-AND-MELT GROWTH TECHNIQUE [J].

MATSUSHITA, T ;

NI, B ;

MURAKAMI, M ;

MORITA, M ;

MIYAMOTO, K ;

SAGA, M ;

MATSUDA, S ;

TANINO, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1989, 28 (09) :L1545-L1548

[7] FLUX CREEP IN HIGH JC YBA2CU3O7 CRYSTALS [J].

MURAKAMI, M ;

MORITA, M ;

KOYAMA, N .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1989, 28 (10) :L1754-L1756

[8] BULK SUPERCONDUCTIVITY OF Y-BA-CU-O AND ER-BA-CU-O [J].

TAKAGI, H ;

UCHIDA, S ;

SATO, H ;

ISHII, H ;

KISHIO, K ;

KITAZAWA, K ;

FUEKI, K ;

TANAKA, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1987, 26 (05) :L601-L602

[9]

TAKAHASHI K, 1989, 6TH INT WS FUT EL DE, P151

[10] SUPERCONDUCTIVITY AT 93-K IN A NEW MIXED-PHASE Y-BA-CU-O COMPOUND SYSTEM AT AMBIENT PRESSURE [J].

WU, MK ;

ASHBURN, JR ;

TORNG, CJ ;

HOR, PH ;

MENG, RL ;

GAO, L ;

HUANG, ZJ ;

WANG, YQ ;

CHU, CW .

PHYSICAL REVIEW LETTERS, 1987, 58 (09) :908-910

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