2D Electron Gas with 100% Spin‐Polarization in the (LaMnO3)2/(SrTiO3)2 Superlattice under Uniaxial Strain. Issue 8 (28th July 2014)

• Record Type: Journal Article
• Authors: Cossu, F.; Jilili, J.; Schwingenschlögl, U.
• Is Part Of: Advanced materials interfaces. Volume 1:Issue 8(2014)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2014-07-28
• Subjects: Materials science -- Periodicals; 620.11
• DOI: 10.1002/admi.201400057
• Languages: English
• ISSNs: 2196-7350

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>By first‐principles calculations we investigate the structural, electronic, and magnetic properties of the (LaMnO₃)₂/(SrTiO₃)₂ superlattice. We find that a monoclinic C_2h symmetry is energetically favorable and that the spins order ferromagnetically. Under both compressive and tensile uniaxial strain the electronic structure of the superlattice shows a half‐metallic character. In particular, a fully spin‐polarized two‐dimensional electron gas, which traces back to the Ti 3d_xy orbitals, is achieved under compressive uniaxial strain.</p> </abstract>