Padhan, P. ; Prellier, W. ; Budhani, R. C. (2006) Antiferromagnetic coupling and enhanced magnetization in all-ferromagnetic superlattices Applied Physics Letters, 88 (19). 192509_1-192509_3. ISSN 0003-6951
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Official URL: http://apl.aip.org/resource/1/applab/v88/i19/p1925...
Related URL: http://dx.doi.org/10.1063/1.2202690
Abstract
The structural and magnetic properties of a series of superlattices consisting of two ferromagnetic metals La0.7Sr0.3MnO3 (LSMO) and SrRuO3 (SRO) grown on (001) oriented SrTiO3 are studied. Superlattices with a fixed LSMO layer thickness of 20 unit cells and varying SRO layer thickness show a sudden drop in magnetization on cooling through a temperature where both LSMO and SRO layers are ferromagnetic. This behavior suggests an antiferromagnetic coupling between the layers. In addition, the samples having thinner SRO layers (n<6) exhibit enhanced saturation magnetization at 10 K. These observations are attributed to the possible modification in the stereochemistry of the Ru and Mn ions in the interfacial region.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Lanthanum Compounds; Strontium Compounds; Ferromagnetic Materials; Superlattices; Magnetisation; Antiferromagnetic Materials |
| ID Code: | 87787 |
| Deposited On: | 22 Mar 2012 07:47 |
| Last Modified: | 22 Mar 2012 07:47 |
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