Cation ordering structure in La0.8Ca0.2MnO3 thin films by pulsed laser deposition
Li, Y.H., M. Rajeswari, A. Biswasl, D.J. Kang, C. Sehmen, L. Salamanca-Riba, Ramamoorthy Ramesh, T. Venkatesan, Rzchowski M.S., Kawasaki M., Millis A.J., Molnar S., Rajeswari M.
A careful analysis of high-resolution transmission electron microscopy images from La0.8Ca0.2MnO3 thin films indicates that the images can not explained based on either the classical Pnma structure or its monoclinic distortion. A cation ordered structure is proposed which could be responsible for the significantly higher Tc of the film (298K) compared with the bulk material of the same composition (190K).
Materials Research Society Symposium - Proceedings
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