Time Dependent Changes in Ag Doped YBCO Superconductors

• Authors: D. Volochová , V. Antal , P. Diko , M. Šefčiková , K. Zmorayová , J. Kováč , H. Weber , X. Chaud
• Languages of publication: EN

Abstracts

EN

Magnetization measurements at 77 K were conducted on the single-crystalline samples of YBCO superconductor doped with Ag prepared by the top-seeded melt-growth process. The single-grain samples had a nominal composition Y_{1.5}Ba_2(Cu,Ag)_3O_{y}. Magnetization measurements on the samples, oxygenated by two different processes: by standard oxygenation and by high pressure oxygenation, repeated after 24 months, revealed time dependent changes in magnetization behaviour and critical transition temperatures, T_{c}, which could be associated with redistribution of oxygen vacancies and their interaction with Ag dopant atoms.

Keywords

EN

74.25.Ha; 74.25.Sv; 74.62.Bf; 74.62.Dh; 74.62.Fj

Discipline

• 74.62.Bf: Effects of material synthesis, crystal structure, and chemical composition(for methods of materials synthesis, see 81.20.-n)
• 74.25.Ha: Magnetic properties including vortex structures and related phenomena(for vortices, magnetic bubbles, and magnetic domain structure, see 75.70.Kw)
• 74.62.Dh: Effects of crystal defects, doping and substitution(for specific crystal defects, see 61.72.-y)
• 74.62.Fj: Effects of pressure
• 74.25.Sv: Critical currents

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 5
• Pages: 1047-1048

Dates

published

2010-11

Contributors

author

D. Volochová

• Materials Physics Laboratory, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic
• Vienna University of Technology, Atominstitut, Stadionallee 2, 1020 Vienna, Austria

author

V. Antal

• Materials Physics Laboratory, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic
• Vienna University of Technology, Atominstitut, Stadionallee 2, 1020 Vienna, Austria

author

P. Diko

• Materials Physics Laboratory, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic

author

M. Šefčiková

• Materials Physics Laboratory, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic

author

K. Zmorayová

• Materials Physics Laboratory, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic

author

J. Kováč

• Materials Physics Laboratory, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic

author

H. Weber

• Vienna University of Technology, Atominstitut, Stadionallee 2, 1020 Vienna, Austria

author

X. Chaud

• CNRS/CRETA, 25, Avenue des Martyrs, 38042 Grenoble Cedex 9, France

References

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Identifiers

DOI

10.12693/APhysPolA.118.1047