Study of Composites Consisting of High-T_{c} Superconductor and Fine Magnetic Particles

• Authors: M. Timko , P. Kopčanský , J. Kováč , M. Koneracká , V. Plecháček
• Languages of publication: EN

Abstracts

EN

The composite systems as a mixture of fine magnetic particles of Fe_{3}O_{4} and superconducting powder such as Bi_{1.8}Pb_{0.2}Sr_{2}Ca_{2}Cu_{3}O_{10+x} were prepared. The influence of internal magnetic field (generated by magnetic particles) on the superconducting properties of prepared composites were studied as a function of concentration of magnetic particles and their magnetic state. The observed data both of the shielding and the Meissner effect were compared with corresponding linear combination of pure signals of magnetite and superconductor, respectively. The large differences were observed for demagnetized samples. It means that result must be discussed in the frame of the distribution of internal magnetic field created by the magnetic particles.

Keywords

EN

74.72.Hs; 75.50.Tt

Discipline

• 75.50.Tt: Fine-particle systems; nanocrystalline materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 97
• Issue: 3
• Pages: 389-392

Dates

published

2000-03

Contributors

author

M. Timko

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 043 53 Košice, Slovak Republic

author

P. Kopčanský

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 043 53 Košice, Slovak Republic

author

J. Kováč

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 043 53 Košice, Slovak Republic

author

M. Koneracká

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 043 53 Košice, Slovak Republic

author

V. Plecháček

• Institute of Physics, Czech Academy of Sciences, Cukrovarnícka 10, 162 00 Praha 6, Czech Republic

Identifiers

DOI

10.12693/APhysPolA.97.389