Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Strain-Induced Change in Local Structure and its Effect on the Ferromagnetic Properties of La0.5Sr0.5CoO3 Thin Films



Joseph C. Woicik, C. K. Xie, J. I. Budnick, W.A. Hines, B.O. Wells


Strained La0.5Sr0.5CoO3 films were epitaxially grown on SrTiO3 and LaAlO3 substrates by pulsed laser deposition. The Co-O bond lengths along in-plane and out-of-plane directions in thin films have been determined by high-resolution extended x-ray absorption fine-structure measurements. The mechanical strain has been shown to largely alter the bond length and induces little change on the bond angle, which is in contrast to many reports of strained manganite films. The change in local structure is responsible for the modification of ferromagnetism in thin films, which is only qualitatively in agreement with double exchange mechanism.
Applied Physics Letters


ferromagnetism, LaSrCoO3, strain-induced local structure
Created November 3, 2008, Updated February 19, 2017