Substrate effect on the magnetic microstructure of La{sub 0.7}Sr{sub 0.3}MnO{sub 3} thin films studied by magnetic force microscopy
Colossal magnetoresistive La{sub 0.7}Sr{sub 0.3}MnO{sub 3} thin films have been grown under tensile strains on (100)-SrTiO{sub 3} substrates and compressive strains on (100)-LaAlO{sub 3} and (110)-NdGaO{sub 3} substrates by pulsed laser deposition. Using magnetic force microscopy (MFM), a {open_quotes}feather-like{close_quotes} magnetic pattern, characteristic of films with an in-plane magnetization, is observed for films deposited on both SrTiO{sub 3} and NdGaO{sub 3} while a {open_quotes}bubble{close_quotes} magnetic pattern, typical of films with an out-of-plane magnetization, is recorded for LaAlO{sub 3}. We show that the shape of the magnetic pattern imaged by MFM is fully correlated to the easy direction of the magnetization in the film. {copyright} 2001 American Institute of Physics.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40203192
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 23 Vol. 78; ISSN 0003-6951
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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