Thin films and artificial materials deposition, applied to the study of high temperature superconductors, can be a powerful method to achieve better comprehension of the conduction mechanisms in these materials and, in perspective, to obtain new superconducting compounds. We simulate the layered structure of the superconducting oxides by alternating infinite layer compounds (CaCuO2, SrCuO2, BaCuO2) both pure and doped either with chemical substitutions or stoichiometry variations. By the first way, we obtained superlattices with a semiconducting electrical behaviour, probably because of the disorder induced by such high chemical substitutions. The second way led to superconducting films with transition temperatures around 80 K and low anisotropy. Furthermore, their artificial nature offers an unique possibility of analysing the influence of the structural properties on the superconducting behaviour, such as the correlation between the number of CuO2 planes contained in the infinite layer block (CaCuO2) and the transport properties.

Marre, D., Braccini, V., Canesi, A., Gariglio, S., Pallecchi, I., Putti, M., et al. (1999). Epitaxial growth and characterisation of artificial and superconducting superlattices deposited by PLD. In INTERNATIONAL JOURNAL OF MODERN PHYSICS B (pp.1061-1066). SINGAPORE : WORLD SCIENTIFIC PUBL CO PTE LTD.

Epitaxial growth and characterisation of artificial and superconducting superlattices deposited by PLD

ARCIPRETE, FABRIZIO;BALESTRINO, GIUSEPPE;MEDAGLIA, PIER GIANNI;
1999

Abstract

Thin films and artificial materials deposition, applied to the study of high temperature superconductors, can be a powerful method to achieve better comprehension of the conduction mechanisms in these materials and, in perspective, to obtain new superconducting compounds. We simulate the layered structure of the superconducting oxides by alternating infinite layer compounds (CaCuO2, SrCuO2, BaCuO2) both pure and doped either with chemical substitutions or stoichiometry variations. By the first way, we obtained superlattices with a semiconducting electrical behaviour, probably because of the disorder induced by such high chemical substitutions. The second way led to superconducting films with transition temperatures around 80 K and low anisotropy. Furthermore, their artificial nature offers an unique possibility of analysing the influence of the structural properties on the superconducting behaviour, such as the correlation between the number of CuO2 planes contained in the infinite layer block (CaCuO2) and the transport properties.
9th National Congress on High Temperature Superconductivity (SATT9)
RAVENNA, ITALY
OCT 06-09, 1998
INFM-Sezione D, ENEA, Europa Metalli Spa, Edison Spa, Cise Spa, Gnsm-cnr, Ansaldo Ricerche Srl
Rilevanza nazionale
contributo
Settore FIS/03 - Fisica della Materia
English
TRANSPORT-PROPERTIES; FILMS
6
Intervento a convegno
Marre, D., Braccini, V., Canesi, A., Gariglio, S., Pallecchi, I., Putti, M., et al. (1999). Epitaxial growth and characterisation of artificial and superconducting superlattices deposited by PLD. In INTERNATIONAL JOURNAL OF MODERN PHYSICS B (pp.1061-1066). SINGAPORE : WORLD SCIENTIFIC PUBL CO PTE LTD.
Marre, D; Braccini, V; Canesi, A; Gariglio, S; Pallecchi, I; Putti, M; Siri, A; Arciprete, F; Balestrino, G; Medaglia, Pg; Petrocelli, G
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/51990
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