%0 Conference Paper
%K Thin films
%K Pulsed laser deposition
%K Transmission electron microscopy
%K Crystal structure
%K Lanthanum compounds
%K Positive ions
%K Cation ordered structures
%A Y.H Li
%A M Rajeswari
%A A Biswasl
%A D.J Kang
%A C Sehmen
%A L Salamanca-Riba
%A Ramamoorthy Ramesh
%A T Venkatesan
%A Rzchowski M.S
%A Kawasaki M
%A Millis A.J
%A Molnar S
%A Rajeswari M
%B Materials Research Society Symposium - Proceedings
%D 2000
%G eng
%P 81-86
%T Cation ordering structure in La0.8Ca0.2MnO3 thin films by pulsed laser deposition
%V 602
%X <p>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).</p>