INVESTIGADORES
HABERKORN Nestor Fabian
artículos
Título:
Glass like behaviour at the PrBa2Cu3O7 / La0.75Sr0.25MnO3 interface
Autor/es:
N. HABERKORN, F. LOVEY, A. M. CONDÓ, G. NIEVA, AND J. GUIMPEL
Revista:
PHYSICAL REVIEW B - CONDENSED MATTER AND MATERIALS PHYSICS
Editorial:
The American Physical Society
Referencias:
Año: 2007 vol. 75 p. 24427 - 24433
ISSN:
0163-1829
Resumen:
We study the crystalline structure and the magnetic properties of two different PrBa2Cu3O(7-x) / La0.75Sr0.25MnO3 (PBCO/LSr0.25MO) superlattices grown by dc magnetron sputtering on (100) SrTiO3. The microstructure was studied by high-resolution transmission electron microscopy (HRTEM). Magnetic, magnetotransport and time dependence measurements indicate a behavior compatible with phase separation at the interface, strain induced by the lattice parameter difference, and the presence of a structural transition in the manganite material. Spin glass like blocking behavior was found at low temperatures, below 70K.
