Epitaxial stabilization of ε-Fe2O3 (00l) thin films on SrTiO3 (111)
Gich García, Martí (Institut de Ciència de Materials de Barcelona)
Gázquez Alabart, Jaume (Oak Ridge National Laboratory. Materials Science and Technology Division)
Roig i Serra, Anna (Institut de Ciència de Materials de Barcelona)
American Physical Society

Data:	2010
Resum:	Thin films of the metastable and elusive ε-Fe2O3 have been epitaxially stabilized on SrTiO3 (111) substrates. The ε-Fe2O3 films present a (001) orientation perpendicular to the substrate and three in-plane domains measuring a few nanometers and showing atomically sharp interfaces. We argue that this domain structure, rather than the epitaxial-strain, plays an essential role in stabilizing the ε-Fe2O3 by minimizing the energy of (100) surfaces. The ε-Fe2O3 films show a large in-plane coercivity ∼ 8 kOe which combined with the magnetoelectric character claimed for this oxide may lead to novel applications in spintronics.
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Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Pel·lícules fines
Publicat a:	Applied physics letters, Vol. 96, Issue 11 (March 2010) , p. 112508/1-112508/3, ISSN 1077-3118

DOI: 10.1063/1.3360217

3 p, 246.0 KB

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