Probing orbital ordering in LaVO3 epitaxial films by Raman scattering

Single crystals of Mott-Hubbard insulator LaVO3 exhibit spin and orbital ordering along with a structural change below ≈140 K. The occurrence of orbital ordering in epitaxial LaVO3 films has, however, been little investigated. By temperature-dependent Raman scattering spectroscopy, we probed and evi...

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Main Authors: I. Vrejoiu, C. Himcinschi, L. Jin, C.-L. Jia, N. Raab, J. Engelmayer, R. Waser, R. Dittmann, P. H. M. van Loosdrecht
Format: Article
Language:English
Published: AIP Publishing LLC 2016-04-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.4945658
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author I. Vrejoiu
C. Himcinschi
L. Jin
C.-L. Jia
N. Raab
J. Engelmayer
R. Waser
R. Dittmann
P. H. M. van Loosdrecht
author_facet I. Vrejoiu
C. Himcinschi
L. Jin
C.-L. Jia
N. Raab
J. Engelmayer
R. Waser
R. Dittmann
P. H. M. van Loosdrecht
author_sort I. Vrejoiu
collection DOAJ
description Single crystals of Mott-Hubbard insulator LaVO3 exhibit spin and orbital ordering along with a structural change below ≈140 K. The occurrence of orbital ordering in epitaxial LaVO3 films has, however, been little investigated. By temperature-dependent Raman scattering spectroscopy, we probed and evidenced the transition to orbital ordering in epitaxial LaVO3 film samples fabricated by pulsed-laser deposition. This opens up the possibility to explore the influence of different epitaxial strain (compressive vs. tensile) and of epitaxy-induced distortions of oxygen octahedra on the orbital ordering, in epitaxial perovskite vanadate films.
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spelling doaj.art-ec6afdfc7cf2408b9f74c9cfbe6d4dbb2022-12-22T01:30:00ZengAIP Publishing LLCAPL Materials2166-532X2016-04-0144046103046103-1010.1063/1.4945658004604APMProbing orbital ordering in LaVO3 epitaxial films by Raman scatteringI. Vrejoiu0C. Himcinschi1L. Jin2C.-L. Jia3N. Raab4J. Engelmayer5R. Waser6R. Dittmann7P. H. M. van Loosdrecht8Physikalisches Institut, University of Cologne, D-50937 Cologne, GermanyTU Bergakademie Freiberg, Institute of Theoretical Physics, D-09596 Freiberg, GermanyPeter Grünberg Institut (PGI-5), Forschungszentrum Jülich GmbH, D-52425 Jülich, GermanyPeter Grünberg Institut (PGI-5), Forschungszentrum Jülich GmbH, D-52425 Jülich, GermanyPeter Grünberg Institut (PGI-7), Forschungszentrum Jülich GmbH, D-52425 Jülich, GermanyPhysikalisches Institut, University of Cologne, D-50937 Cologne, GermanyPeter Grünberg Institut (PGI-7), Forschungszentrum Jülich GmbH, D-52425 Jülich, GermanyPeter Grünberg Institut (PGI-7), Forschungszentrum Jülich GmbH, D-52425 Jülich, GermanyPhysikalisches Institut, University of Cologne, D-50937 Cologne, GermanySingle crystals of Mott-Hubbard insulator LaVO3 exhibit spin and orbital ordering along with a structural change below ≈140 K. The occurrence of orbital ordering in epitaxial LaVO3 films has, however, been little investigated. By temperature-dependent Raman scattering spectroscopy, we probed and evidenced the transition to orbital ordering in epitaxial LaVO3 film samples fabricated by pulsed-laser deposition. This opens up the possibility to explore the influence of different epitaxial strain (compressive vs. tensile) and of epitaxy-induced distortions of oxygen octahedra on the orbital ordering, in epitaxial perovskite vanadate films.http://dx.doi.org/10.1063/1.4945658
spellingShingle I. Vrejoiu
C. Himcinschi
L. Jin
C.-L. Jia
N. Raab
J. Engelmayer
R. Waser
R. Dittmann
P. H. M. van Loosdrecht
Probing orbital ordering in LaVO3 epitaxial films by Raman scattering
APL Materials
title Probing orbital ordering in LaVO3 epitaxial films by Raman scattering
title_full Probing orbital ordering in LaVO3 epitaxial films by Raman scattering
title_fullStr Probing orbital ordering in LaVO3 epitaxial films by Raman scattering
title_full_unstemmed Probing orbital ordering in LaVO3 epitaxial films by Raman scattering
title_short Probing orbital ordering in LaVO3 epitaxial films by Raman scattering
title_sort probing orbital ordering in lavo3 epitaxial films by raman scattering
url http://dx.doi.org/10.1063/1.4945658
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