Exchange biasing and electric polarization with YMnO3
Martí Rovirosa, Xavier (Institut de Ciència de Materials de Barcelona)
Sánchez Barrera, Florencio (Institut de Ciència de Materials de Barcelona)
Hrabovsky, D. (Institut de Ciència de Materials de Barcelona)
Fábrega Sánchez, Lourdes (Institut de Ciència de Materials de Barcelona)
Ruyter, A. (Institut de Ciència de Materials de Barcelona)
Fontcuberta, Josep (Institut de Ciència de Materials de Barcelona)
Laukhin, Vladimir (Institut de Ciència de Materials de Barcelona)
Skumryev, Vassil (Universitat Autònoma de Barcelona. Departament de Física)
García-Cuenca Varona, María Victoria (Universitat de Barcelona. Departament de Física Aplicada i Òptica)
Ferrater Martorell, Cèsar (Universitat de Barcelona. Departament de Física Aplicada i Òptica)
Varela Fernández, Manuel, 1956- (Universitat de Barcelona. Departament de Física Aplicada i Òptica)
Vilà, A. (Universitat de Barcelona. Departament d'Electrònica)
Lüders, Ulrike Anne (LNMH ONERA-CNRS (Toulouse, França))
Bobo, Jean-François (LNMH ONERA-CNRS (Toulouse, França))
American Physical Society

Date:	2006
Abstract:	We report on the growth and functional characterizations of epitaxialthin films of the multiferroic YMnO3. We show that using Pt as a seed layer on SrTiO3(111) substrates, epitaxialYMnO3films (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.
Note:	This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Ferroelectric materials ; Epitaxy ; Ozone ; Atomic force microscopy ; Exchange interactions ; Ferromagnetic materials ; Ferroelectric thin films ; Thin film growth ; X-ray diffraction ; Polarization
Published in:	Applied physics letters, Vol. 89, Issue 3 (July 2006) , p. 032510/1-032510/3, ISSN 1077-3118

DOI: 10.1063/1.2234285

4 p, 539.9 KB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Group of Smart Nanoengineered Materials, Nanomechanics and Nanomagnetism (Gnm3)
Articles > Research articles
Articles > Published articles