Naslov
The bismuth influence on the formation of Hg-1234 phase

Autori
Planinić, Pavica ; Drobac, Đuro ; Marohnić, Željko ; Brničević, Nevenka

Izvornik
Superlattices and Microstructures (0749-6036) 21 (1997), Suppl. A; 328-337

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Hg-based oxides superconductors; bismuth influence; partial substitution; superconducting properties; magnetic properties

Sažetak
Partial substitution of mercury atoms by bismuth and its influence on the structural, superconducting and magnetic properties of the Hg-based oxide superconductors have been investigated. Two series of samples of the nominal compositions Hg_1-xBi_xBa_2Ca_2Cu_3O_8+delta and Hg_1-xBi_xBa_2Ca_3Cu_4O_10+delta, 0 < x < 0.5, have been prepared by the solid state reactions at normal pressure, by using the sealed quartz tube technique. For the bismuth content range of 0.2 < x < 0.25, for the first series and 0.1 < x < 0.20 for the second one, the formation of the Hg-1234 phase in a high volume percentage, with the superconducting transition Tc(onset) ~ 130 K has been found. The X-ray powder diffraction data and the AC magnetic susceptibility measurements have been correlated.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

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