Electric-field control of ferromagnetism in a nanocomposite via a ZnO phase

Nano Lett. 2013;13(12):5886-90. doi: 10.1021/nl402775h. Epub 2013 Dec 3.

Abstract

La2CoMnO6 (LcmO)-ZnO nanocomposite thin films grown on SrTiO3 and Nb-SrTiO3 (001) are investigated. The films grow in the form of self-assembled epitaxial vertically aligned structures. We show that, at 120 K, an electric field applied across the nanocomposite reversibly alters magnetic properties of LcmO. The effect is consistent with charge-mediated coupling between magnetism and an electric field that can be induced by changes in ion valences.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Crystallization
  • Electromagnetic Fields
  • Magnets / chemistry*
  • Nanocomposites / chemistry*
  • Oxides / chemistry
  • Strontium / chemistry
  • Surface Properties
  • Titanium / chemistry
  • Zinc Oxide / chemistry*

Substances

  • Oxides
  • Titanium
  • strontium titanium oxide
  • Zinc Oxide
  • Strontium