Naslov
Spectral, Superconducting and Magnetic Properties of Ba_2YCu_(3-x)M_xO_(7-delta)

Autori
Brničević, Nevenka ; Tušek-Božić, Ljerka ; Planinić, Pavica ; Turković, Aleksandra ; Šantić, Branko ; Popović, Stanko ; Leising, G. ; Schweiger, E. ; Wippel, V.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
First ECERS. Meeting and Exhibition 1989. Abstracts / - Maastricht : European Ceramic Society, 1989, 124-124

Skup
1^st European Ceramic Society Conference including Science of Ceramics 15

Mjesto i datum
Maastricht, Nizozemska, 18.06.1989. - 23.06.1989

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
superconductivity; substitution effect; spectral properties; magnetic properties

Sažetak
The partial substitution of copper atoms in the superconducting system Ba_2YCu_(3-x)M_xO_(7-delta), M = V, Nb, Ta was investigated. The samples were prepared by the solid state reaction of BaCO_3 and metal oxides using subsequent isothermal treatment at 860°, 900° and 950°C. The infrared spectra indicated complete decarbonization of the samples. Superconducting transition was found at 90-93 K and higher Tc values were favoured by the presence of small amount of dopands. The signal in the EPR spectra obtained for the zero values of magnetic field was of considerable higher intensity than in the nonsubstituted samples. Spectral, superconducting and magnetic properties are discussed.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

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