Effect of structural water on the critical characteristics of highly textured YBa2Cu3O6.9

被引：3

作者：

Bobylev, I. B. ^{[1
]}

Gerasimov, E. G. ^{[1
]}

Zyuzeva, N. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Met Phys, Ural Branch, Ekaterinburg 620990, Russia

来源：

PHYSICS OF THE SOLID STATE | 2014年 / 56卷 / 09期

关键词：

LOW-TEMPERATURE DECOMPOSITION; ELECTROPHYSICAL PROPERTIES; YBA2CU3O7-DELTA; BA2YCU3O7-DELTA; RESTORATION;

D O I：

10.1134/S1063783414090066

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The effect of low-temperature treatment (200A degrees C) in a humid argon atmosphere and subsequent annealing (930A degrees C) on the critical parameters of a highly textured YBa2Cu3O6.9 has been studied. During annealing at T = 200A degrees C, the absorbed water is incorporated into the structure of the compound, which is accompanied by the deterioration of its superconducting properties. However, after the recovery annealing at T = 930A degrees C and subsequent oxidation, the superconducting characteristics (j (c) , B (1c) , and F (p) ) are improved. This is explained by the formation of 124-type planar defects, which are effective pinning centers, especially in high fields applied perpendicular to the c axis (aSyen c). The optimum conditions of double annealing substantially increasing the critical current density (j (c) a parts per thousand yen 10(4) A/cm(2)) in an external magnetic field up to 10 T and also the first critical fields have been found. In fields up to similar to T, the critical current density j (c) is isotropic despite the conservation of high texture in the samples.

引用

页码：1742 / 1747

页数：6

共 26 条

[1] Restoration of the Structure and Superconducting Properties of Ba2YCu3O7-δ after Low-Temperature Decomposition [J].

Bobylev, I. B. ;

Zyuzeva, N. A. ;

Romanov, E. P. .

PHYSICS OF METALS AND METALLOGRAPHY, 2008, 106 (04) :374-383

[2] Phase diagram of the Ba2YCu3O6-Ba2YCu3O7 system below 400°C [J].

Bobylev, I. B. ;

Zyuzeva, N. A. ;

Sudareva, S. V. ;

Krinitsina, T. P. ;

Kuz'minykh, L. N. ;

Blinova, Yu. V. ;

Romanov, E. P. .

PHYSICS OF METALS AND METALLOGRAPHY, 2006, 102 (05) :517-521

[3] Effect of double annealing on the critical parameters of highly textured YBa2Cu3O6.9 [J].

Bobylev, I. B. ;

Gerasimov, E. G. ;

Zyuzeva, N. A. .

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2012, 115 (03) :474-479

[4] Effect of low-temperature annealing on the critical parameters of highly textured YBa2Cu3Oy [J].

Bobylev, I. B. ;

Gerasimov, E. G. ;

Zyuzeva, N. A. .

PHYSICS OF THE SOLID STATE, 2012, 54 (09) :1741-1746

[5] Restoration of the Microstructure of Ba2YCu3O7-δ at T > 900°C after Low-Temperature Decomposition [J].

Bobylev, I. B. ;

Kuznetsova, E. I. ;

Krinitsina, T. P. ;

Zyuzeva, N. A. ;

Sudareva, S. V. ;

Romanov, E. P. .

PHYSICS OF METALS AND METALLOGRAPHY, 2011, 112 (02) :165-169

[6] Effect of Water Vapor and Low-Temperature Decomposition on the Structure and Electrophysical Properties of Nonstoichiometric Compound Ba2YCu3O7-δ [J].

Bobylev, I. B. ;

Zyuzeva, N. A. .

PHYSICS OF METALS AND METALLOGRAPHY, 2011, 112 (02) :127-132

[7] Electrophysical properties and the structure of the YBa2Cu3O y compound thermally restored after low-temperature decomposition [J].

Bobylev, I. B. ;

Zyuzeva, N. A. ;

Romanov, E. P. .

PHYSICS OF THE SOLID STATE, 2010, 52 (07) :1338-1341

[8]

Bobylev IB, 2004, PHYS MET METALLOGR+, V98, P288

[9] Antiferromagnetic properties of a water-vapor-inserted YBa2Cu3O6.5 compound studied by NMR, NQR, and μSR -: art. no. 054506 [J].

Dooglav, AV ;

Egorov, AV ;

Mukhamedshin, IR ;

Savinkov, AV ;

Alloul, H ;

Bobroff, J ;

MacFarlane, WA ;

Mendels, P ;

Collin, G ;

Blanchard, N ;

Picard, PG ;

King, PJC ;

Lord, J .

PHYSICAL REVIEW B, 2004, 70 (05) :054506-1

[10] Materials science challenges for high-temperature superconducting wire [J].

Foltyn, S. R. ;

Civale, L. ;

Macmanus-Driscoll, J. L. ;

Jia, Q. X. ;

Maiorov, B. ;

Wang, H. ;

Maley, M. .

NATURE MATERIALS, 2007, 6 (09) :631-642

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