Emergence of ferromagnetism in antiferromagnetic TbMnO3 by epitaxial strain
Martí Rovirosa, Xavier (Institut de Ciència de Materials de Barcelona)
Skumryev, Vassil (Universitat Autònoma de Barcelona. Departament de Física)
Ferrater Martorell, Cèsar (Universitat de Barcelona. Departament de Física Aplicada i Òptica)
García-Cuenca Varona, María Victoria (Universitat de Barcelona. Departament de Física Aplicada i Òptica)
Varela Fernández, Manuel, 1956- (Universitat de Barcelona. Departament de Física Aplicada i Òptica)
Sánchez Barrera, Florencio (Institut de Ciència de Materials de Barcelona)
Fontcuberta, Josep (Institut de Ciència de Materials de Barcelona)
American Physical Society

Date:	2010
Abstract:	We show that in oxide thin films of spiral antiferromagnetic orthorhombic TbMnO3, ferromagnetism emerges resulting from epitaxially induced strain. The unit cell volume can be tuned (contracting up to a 2%) by varying thickness and deposition conditions; it is found that the ferromagnetic response correlates with the unit cell deformation. Such effect of strain on the magnetic properties turns out to be similar to that occurring in collinear orthorhombic antiferromagnets such as YMnO3. Owing to the intimate relationship between magnetic order and ferroelectricity in TbMnO3 these results may provide a new route to induce magnetoelectric coupling and tailor their ferroelectric response.
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Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Materials ; Propietats magnètiques
Published in:	Applied physics letters, Vol. 96, Issue 22 (May 2010) , p. 222505/1-222505/3, ISSN 1077-3118

DOI: 10.1063/1.3443714

3 p, 180.1 KB

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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