INVESTIGADORES
STEREN Laura beatriz
artículos
Título:
Substrate influence on the magnetoresistance and magnetic order in La0.6Sr0.4MnO3 films
Autor/es:
L.B. STEREN; M. SIRENA; J. GUIMPEL
Revista:
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2000 vol. 211 p. 28 - 34
ISSN:
0304-8853
Resumen:
We report structural, magnetic and transport measurements on La0.6Sr0.4MnO3 thin films grown on MgO and TiSrO3
substrates with thickness varying from 5 to 500 nm. We find that the
lattice mismatch between substrates and films affects the morphology and
induced-strains of the films. We show that these two different effects
strongly influence the ferromagnetic order, the metalinsulator
transition, the localization of the current carriers and the
magnetoresistance of these materials.