Strain induced magnetic domain evolution and spin re-orientation transition in epitaxial manganite films

Gyanendra Singh; P. K. Rout; Rajni Porwal; R. C. Budhani

doi:10.1063/1.4734732

Strain induced magnetic domain evolution and spin re-orientation transition in epitaxial manganite films

Mesoscale and Nanoscale Physics 2012-08-17 v1

Authors: Gyanendra Singh , P. K. Rout , Rajni Porwal , R. C. Budhani

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

The evolution of magnetic domain structure in epitaxial La $_{0.625}$ Ca $_{0.375}$ MnO $_3$ films on (001) NdGaO $_3$ is monitored as a function of temperature and magnetic field using Magnetic Force Microscopy. We see two distinct regions of magnetic orientational order; one in-plane displaying contrast-less image and the other tilted away from the film plane forming a distinct stripe pattern. A strong domain splitting is observed at the boundary of two regions, which is resilient to reorientation with temperature and magnetic field. We propose a model magnetic free energy functional to explain the mechanism of domain splitting seen in manganite films.

Keywords

magnetic domains spin re-orientation transition epitaxial manganite films strain effects magnetic force microscopy domain splitting magnetic free energy

Cite

@article{arxiv.1208.3387,
  title  = {Strain induced magnetic domain evolution and spin re-orientation transition in epitaxial manganite films},
  author = {Gyanendra Singh and P. K. Rout and Rajni Porwal and R. C. Budhani},
  journal= {arXiv preprint arXiv:1208.3387},
  year   = {2012}
}

Related papers

View all related →