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Separation of the Strain and Finite Size Effect on the Ferromagnetic Properties of La0.5Sr0.5CoO3 Thin Films



C Xie, J. I. Budnick, B O. Wells, Joseph Woicik


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 thickness 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.
Applied Physics Letters


ferromagnetic thin films, LaSrCoO^d3


Xie, C. , Budnick, J. , Wells, B. and Woicik, J. (2007), Separation of the Strain and Finite Size Effect on the Ferromagnetic Properties of La<sub>0.5</sub>Sr<sub>0.5</sub>CoO<sub>3</sub> Thin Films, Applied Physics Letters (Accessed July 15, 2024)


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Created February 21, 2007, Updated October 12, 2021