Magnetic couplings vs. stress and strain in epitaxial (La, Sr)MnO3
CNR-INFM SLACS, and Dipartimento di Fisica, Università di Cagliari, 09042 Monserrato (CA), Italy
Corresponding author: a email@example.com
Revised: 28 May 2009
Published online: 8 July 2009
Based on ab initio calculations, we quantify the magnetic couplings and the stress tensor in ferromagnetic Sr-doped LaMnO3 upon combined application of built-in epitaxial and external uniaxial strains. We suggest YAlO3 as a substrate suited to change magnetic order in manganite film with practicable external strains. The effect could lead to strain-activated switches based on piezoelectric-piezomagnetic heterojunctions.
PACS: 75.47.Lx – Manganites / 75.50.Ee – Antiferromagnetics / 75.80.+q – Magnetomechanical and magnetoelectric effects, magnetostriction
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2009