| Issue |
Europhys. Lett.
Volume 54, Number 5, June 2001
|
|
|---|---|---|
| Page(s) | 619 - 625 | |
| Section | Condensed matter: structure, mechanical and thermal properties | |
| DOI | https://doi.org/10.1209/epl/i2001-00337-8 | |
| Published online | 01 December 2003 | |
Coupling between lattice distortions and
magnetism in 
thin films
1
Max-Planck-Institut für Metallforschung
Heisenbergstr. 1, 70569 Stuttgart, Germany
2
Department of Physics, Brock University
St. Catherines, Ontario L2S 3A1, Canada
3
Max-Planck-Institut für Festkörperforschung
Heisenbergstr. 1, 70569 Stuttgart, Germany
Received:
29
January
2001
Accepted:
14
March
2001
X-ray scattering experiments have demonstrated that for thin films
(100
to 500) of
epitaxially grown on 
(100) substrates, the
accommodation of the lattice mismatch between film and substrate
gives rise to a modulated structure. The non-bulk-like
structural properties of these thin films are the origin of
anomalies in the electronic and magnetic behavior. Studies of the
lattice as a function of temperature clearly reveal a
magnetostrictive effect close to the Curie temperature. For
thicker films the strain relief mechanism is replaced by formation
of coherent microtwins and some of the bulk properties are
recovered, but some differences are still observed.
PACS: 61.10.Eq – X-ray scattering (including small-angle scattering) / 68.55.Jk – Structure and morphology; thickness; crystalline orientation and texture / 71.30.+h – Metal-insulator transitions and other electronic transitions
© EDP Sciences, 2001
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