Effects of annealing and strain on La1−xCaxMnO3 thin films: A phase diagram in the ferromagnetic region
- 6 September 1999
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 75 (10) , 1446-1448
- https://doi.org/10.1063/1.124720
Abstract
Oriented, single phase thin films of La1−xCaxMnO3 have been deposited onto (100)-oriented LaAlO3 (0.1<x<0.5) substrates using the pulsed laser deposition technique. While for some compositions, the physical properties (transport and magnetization) of the as-grown films are higher than the bulk values, for other calcium contents the optimized properties are obtained only after annealing under oxygen. These data can be partly explained by changes in oxygen content resulting in cationic vacancies, and thus self-doping effects, accompanying structural changes, may be the cause of properties beyond the phase diagram. We propose a phase diagram for (La1−xCax)1−y□yMnO3 (0.1<x<0.5) thin films.Keywords
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This publication has 16 references indexed in Scilit:
- Effect of substrate-induced strain on the charge-ordering transition in Nd0.5Sr0.5MnO3 thin filmsApplied Physics Letters, 1999
- Ferromagnetism at room temperature in La0.8Ca0.2MnO3 thin filmsApplied Physics Letters, 1999
- Structure and magnetic order inPhysical Review B, 1998
- Effect of particle size on the giant magnetoresistance of La0.7Ca0.3MnO3Applied Physics Letters, 1996
- Low Temperature Magnetoresistance and the Magnetic Phase Diagram ofPhysical Review Letters, 1995
- Giant magnetoresistance in epitaxial Nd0.7Sr0.3MnO3−δ thin filmsApplied Physics Letters, 1995
- Giant magnetoresistance in La1−xSrxMnOz films near room temperatureApplied Physics Letters, 1994
- Thousandfold Change in Resistivity in Magnetoresistive La-Ca-Mn-O FilmsScience, 1994
- Giant negative magnetoresistance in perovskitelike ferromagnetic filmsPhysical Review Letters, 1993
- Neutron Diffraction Study of the Magnetic Properties of the Series of Perovskite-Type CompoundsPhysical Review B, 1955