I González et al 2008 J. Phys.: Condens. Matter 20 264002 doi:10.1088/0953-8984/20/26/264002
I González1,2, S Okamoto2, S Yunoki1,2, A Moreo1,2 and E Dagotto1,2
Show affiliationsIn this work, recent theoretical investigations by the authors in the area of oxide multilayers are briefly reviewed. The calculations were carried out using model Hamiltonians and a variety of non-perturbative techniques. Moreover, new results are also included here. They correspond to the generation of a metallic state by mixing insulators in a multilayer geometry, using the Hubbard and double-exchange models. For the latter, the resulting metallic state is also ferromagnetic. This illustrates how electron or hole doping via transfer of charge in multilayers can lead to the study of phase diagrams of transition metal oxides in the clean limit. Currently, these phase diagrams are much affected by the disordering standard chemical doping procedure, which introduces quenched disorder in the material.
75.70.Cn Magnetic properties of interfaces (multilayers, superlattices, heterostructures)
Issue 26 (2 July 2008)
Received 5 December 2007, in final form 18 January 2008
Published 9 June 2008
I González et al 2008 J. Phys.: Condens. Matter 20 264002
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