Publication
Title
Thickness dependent properties in oxide heterostructures driven by structurally induced metal-oxygen hybridization variations
Author
Abstract
Thickness-driven electronic phase transitions are broadly observed in different types of functional perovskite heterostructures. However, uncertainty remains whether these effects are solely due to spatial confinement, broken symmetry, or rather to a change of structure with varying film thickness. Here, this study presents direct evidence for the relaxation of oxygen-2p and Mn-3d orbital (p-d) hybridization coupled to the layer-dependent octahedral tilts within a La2/3Sr1/3MnO3 film driven by interfacial octahedral coupling. An enhanced Curie temperature is achieved by reducing the octahedral tilting via interface structure engineering. Atomically resolved lattice, electronic, and magnetic structures together with X-ray absorption spectroscopy demonstrate the central role of thickness-dependent p-d hybridization in the widely observed dimensionality effects present in correlated oxide heterostructures.
Language
English
Source (journal)
Advanced functional materials. - Weinheim
Publication
Weinheim : 2017
ISSN
1616-301X
Volume/pages
27 :17 (2017) , 9 p.
Article Reference
1606717
ISI
000400449200011
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Project info
IFOX - Interfacing Oxides.
ESTEEM 2 - Enabling science and technology through European electron microscopy.
Exploring electron vortex beams (VORTEX).
Revealing the source of emergent properties in complex oxides via direct imaging of charge/orbital/spin ordering.
Bringing light atoms to light: precise characterization of light-atom nanostructures using transmission electron microscopy.
Complex hetero-nanosystems: three-dimensional characterisation down to the atomic scale.
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 02.08.2018
Last edited 20.09.2021
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