Stacking faults in YBa2Cu3O7-x:: Measurement using x-ray diffraction and effects on critical current

被引：72

作者：

Specht, E. D. ^{[1
]}

Goyal, A.

Li, J.

Martin, P. M.

Li, X.

Rupich, M. W.

机构：

[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[2] Amer Superconductor Corp, Westborough, MA 01581 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 16期

基金：

美国能源部;

关键词：

D O I：

10.1063/1.2364185

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The density n of stacking faults (SFs) in epitaxial YBa2Cu3O7-x (Y123) films, consisting of extra CuO planes, is measured by fitting x-ray diffraction patterns using a random stacking model. The SF density is n=0.068 nm(-1) in films grown by metal-organic deposition on textured templates and optimized for high I-c. The presence of SF is correlated with pinning of magnetic field (H) applied in the Y123 ab plane. SF can be nearly eliminated by a high temperature anneal, or by adding excess Dy, resulting in I-c which is nearly independent of the orientation of H.

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页数：3

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共 20 条

[11] CORRELATION BETWEEN JC AND SCREW DISLOCATION DENSITY IN SPUTTERED YBA2CU3O7-DELTA FILMS [J].

MANNHART, J ;

ANSELMETTI, D ;

BEDNORZ, JG ;

CATANA, A ;

GERBER, C ;

MULLER, KA ;

SCHLOM, DG .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1992, 86 (02) :177-181

[12] CRYSTAL-STRUCTURE OF THE 80-K SUPERCONDUCTOR YBA2CU4O8 [J].

MARSH, P ;

FLEMING, RM ;

MANDICH, ML ;

DESANTOLO, AM ;

KWO, J ;

HONG, M ;

MARTINEZMIRANDA, LJ .

NATURE, 1988, 334 (6178) :141-143

[13] MICROSTRUCTURAL INHOMOGENEITIES IN CHEMICALLY DERIVED BA2YCU3O7-X THIN-FILMS - IMPLICATIONS FOR FLUX-PINNING [J].

MCINTYRE, PC ;

CIMA, MJ .

JOURNAL OF MATERIALS RESEARCH, 1994, 9 (11) :2778-2788

[14] 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

[15] MICROSTRUCTURE, OXYGEN ORDERING AND PLANAR DEFECTS IN THE HIGH-TC SUPERCONDUCTOR YBA2CU3O6.9 [J].

OURMAZD, A ;

RENTSCHLER, JA ;

SPENCE, JCH ;

OKEEFFE, M ;

GRAHAM, RJ ;

JOHNSON, DW ;

RHODES, WW .

NATURE, 1987, 327 (6120) :308-310

[16] Metalorganic deposition of YBCO films for second-generation high-temperature superconductor wires [J].

Rupich, MW ;

Verebelyi, DT ;

Zhang, W ;

Kodenkandath, T ;

Li, XP .

MRS BULLETIN, 2004, 29 (08) :572-578

[17] HREM INVESTIGATION OF (110) ORIENTED YBA2CU3O7 THIN-FILMS DEPOSITED ON (110) SRTIO3 SUBSTRATES [J].

SEO, JW ;

KABIUS, B ;

JIA, CL ;

SOLTNER, H ;

POPPE, U ;

URBAN, K .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1994, 225 (1-2) :158-166

[18] CRYSTAL-STRUCTURE OF THE HIGH-TC SUPERCONDUCTOR BA2YCU3O9-DELTA [J].

SIEGRIST, T ;

SUNSHINE, S ;

MURPHY, DW ;

CAVA, RJ ;

ZAHURAK, SM .

PHYSICAL REVIEW B, 1987, 35 (13) :7137-7139

[19] ANISOTROPY OF CRITICAL CURRENT IN LAYERED OXIDE SUPERCONDUCTORS [J].

TACHIKI, M ;

TAKAHASHI, S .

SOLID STATE COMMUNICATIONS, 1989, 72 (11) :1083-1086

[20] STRUCTURE OF (CUO)2 DOUBLE-LAYERS IN SUPERCONDUCTING YBA2CU3O7 [J].

ZANDBERGEN, HW ;

GRONSKY, R ;

WANG, K ;

THOMAS, G .

NATURE, 1988, 331 (6157) :596-599