Exchange biasing and electric polarization with YMnO3

Abstract

We report on the growth and functional characterization of epitaxial thin films of the multiferroic YMnO3. We show that using Pt as a seed layer on SrTiO3(111) substrates, epitaxial YMnO3 films (0001) textured are obtained. An atomic force microscope has been used to polarize electric domains revealing the ferroelectric nature of the film. When a Permalloy layer is grown on top of the YMnO3(0001) film, clear indications of exchange bias and enhanced coercivity are observed at low temperature. The observation of coexisting antiferromagnetism and electrical polarization suggests that the biferroic character of YMnO3 can be exploited in novel devices.

15 pages, 4 figures, Applied Physics Letters (in press)

References in corpus (1)

• Epitaxial Growth of Multiferroic YMnO3 on GaN

Cited by in corpus (7)

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• Ferroelectric Control of Magnetism and Transport in Oxide Heterostructures
• Electric field effects on magnetotransport properties of multiferroic Py/YMnO3/Pt heterostructures