Magnetic properties of heteroepitaxial La{sub 0.7}Sr{sub 0.3}MnO{sub 3}/SrTiO{sub 3} superlattices
We have investigated the magnetic properties of La{sub 0.7}Sr{sub 0.3}MnO{sub 3}(LSMO)/SrTiO{sub 3}(STO) superlattices on a number of samples with the thickness d{sub LSMO}{ge}d{sub STO} in order to understand the interface magnetism and the possible interlayer magnetic coupling. A series of multilayers with several thickness combinations of d{sub LSMO} and d{sub STO}, varying from 1.9 to 10 nm was fabricated on SrTiO{sub 3}(100) substrates by pulsed laser deposition. A ferromagnetic transition was observed for all studied films and the transition temperature decreased with d{sub LSMO}, without showing a clear dependence on d{sub STO}. The spontaneous magnetization was found to decrease with d{sub LSMO} though the decrease is not as strong as expected for a magnetically disordered surface of the LSMO layers. {copyright} 2001 American Institute of Physics.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40203888
- Journal Information:
- Journal of Applied Physics, Vol. 89, Issue 11; Other Information: DOI: 10.1063/1.1359467; Othernumber: JAPIAU000089000011006834000001; 411111MMM; PBD: 1 Jun 2001; ISSN 0021-8979
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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