Magnetic anisotropy and anomalous transitions in TbMnO3 thin films
Date of Issue2012
School of Physical and Mathematical Sciences
TbMnO3 thin films with different crystallographic orientations were deposited epitaxially on LaAlO3  and SrTiO3  single crystal substrates by using pulsed laser deposition. Magnetization measurements were performed along the , [−110], and  directions of the films. Obvious magnetic anisotropy and low temperature ferromagnetism were found. Transitions at T ∼ 10, 32, 120, and 125 K along different directions are observed. The susceptibility anomalies, remarkably anisotropic, are discussed on the frame of the domain wall and strain-induced distortion. Particularly, the lattice mismatch and the anisotropic thermal expansion between the films and substrates are likely responsible for the distortion behaviors.
DRNTU::Science::Physics::Electricity and magnetism
Applied physics letters
© 2012 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following official DOI: http://dx.doi.org/10.1063/1.4754544. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.