Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
general
Surface symmetry-breaking and strain effects on orbital occupancy in transition metal perovskite epitaxial films
Nature Communications, Volume 3, Article 1189, Year 2012
Notification
URL copied to clipboard!
Description
The electron occupancy of 3d-orbitals determines the properties of transition metal oxides. This can be achieved, for example, through thin-film heterostructure engineering of ABO3 oxides, enabling emerging properties at interfaces. Interestingly, epitaxial strain may break the degeneracy of 3d-eg and t2g orbitals, thus favoring a particular orbital filling with consequences for functional properties. Here we disclose the effects of symmetry breaking at free surfaces of ABO3 perovskite epitaxial films and show that it can be combined with substrate-induced epitaxial strain to tailor at will the electron occupancy of in-plane and out-of-plane surface electronic orbitals. We use X-ray linear dichroism to monitor the relative contributions of surface, strain and atomic terminations to the occupancy of 3z2-r2 and x 2-y2 orbitals in La2/3Sr1/3MnO 3 films. These findings open the possibility of an active tuning of surface electronic and magnetic properties as well as chemical properties (catalytic reactivity, wettability and so on). © 2012 Macmillan Publishers Limited. All rights reserved.
Authors & Co-Authors
Barla, Alessandro
Spain, Cerdanyola Del Valles
Alba Synchrotron Light Facility
Italy, Montelibretti
Istituto Di Struttura Della Materia, Montellibreti
Bondino, Federica
Italy, Trieste
Laboratorio Nazionale Tasc
Magnano, Elena
Italy, Trieste
Laboratorio Nazionale Tasc
Statistics
Citations: 258
Authors: 3
Affiliations: 4
Identifiers
Doi:
10.1038/ncomms2189
ISSN:
20411723