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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2011

Microstructure and interface studies of LaVO 3 / SrVO 3 superlattices

Résumé

The structure and interface characteristics of (LaVO3)6m(SrVO3)m superlattices deposited on a (100)-SrTiO3 substrate were studied using transmission electron microscopy (TEM). Cross-section TEM studies revealed that both LaVO3 (LVO) and SrVO3 (SVO) layers are good single-crystal quality and epitaxially grown with respect to the substrate. It is evidenced that LVO layers are made of two orientational variants of a distorted perovskite compatible with bulk LaVO3, while SVO layers suffers from a tetragonal distortion due to the substrate-induced stain. Electron energy loss spectroscopy investigations indicate changes in the fine structure of the V L23 edge, related to a valence change between the LaVO3 and the SrVO3 layers.

Domaines

Chimie Matériaux

Dates et versions

hal-02162463 , version 1 (21-06-2019)

Identifiants

Citer

P. Boullay, A. David, W. Sheets, U. Lüders, W. Prellier, et al.. Microstructure and interface studies of LaVO 3 / SrVO 3 superlattices. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2011, 83 (12), pp.125403. ⟨10.1103/PhysRevB.83.125403⟩. ⟨hal-02162463⟩
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