Separation of the Strain and Finite Size Effect on the Ferromagnetic Properties of La0.5Sr0.5CoO3 Thin Films
The ferromagnetic properties of epitaxial La0.5Sr0.5CoO3 thin films have been studied. The magnetic transition is affected by both strain and finite thickness. We have used a series of films of different thicknesses and on different substrates in order to quantitatively determine the change in Curie temperature contributed by each effect. The phase diagram of TC versus in-plane strain suggests that the ferromagnetic transition temperature is suppressed by tensile strain and enhanced by compressive strain. The general method of separating strain and finite thickness effects should be applicable to any ordering phase transition in thin films.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source
- Sponsoring Organization:
- Doe - Office Of Science
- DOE Contract Number:
- DE-AC02-98CH10886
- OSTI ID:
- 980448
- Report Number(s):
- BNL-93366-2010-JA; APPLAB; TRN: US201015%%1833
- Journal Information:
- Applied Physics Letters, Vol. 91; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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