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Coupling and Electrical Control of Structural, Orbital and Magnetic Orders in Perovskites
- Source :
- Scientific Reports
- Publication Year :
- 2014
- Publisher :
- arXiv, 2014.
-
Abstract
- Perovskite oxides are already widely used in industry and have huge potential for novel device applications thanks to the rich physical behaviour displayed in these materials. The key to the functional electronic properties exhibited by perovskites is often the so-called Jahn-Teller distortion. For applications, an electrical control of the Jahn-Teller distortions, which is so far out of reach, would therefore be highly desirable. Based on universal symmetry arguments, we determine new lattice mode couplings that can provide exactly this paradigm, and exemplify the effect from first-principles calculations. The proposed mechanism is completely general, however for illustrative purposes, we demonstrate the concept on vanadium based perovskites where we reveal an unprecedented orbital ordering and Jahn-Teller induced ferroelectricity. Thanks to the intimate coupling between Jahn-Teller distortions and electronic degrees of freedom, the electric field control of Jahn-Teller distortions is of general relevance and may find broad interest in various functional devices.<br />Comment: The first two authors contributed equally
- Subjects :
- Coupling
Condensed Matter - Materials Science
Multidisciplinary
Materials science
Condensed matter physics
Materials Science (cond-mat.mtrl-sci)
FOS: Physical sciences
Electrical control
Ferroelectricity
Article
11000/13
Electric field
Lattice (order)
11000/12
11000/11
QD473
QC176.8.N35
Physical behaviour
Electronic properties
Perovskite (structure)
Subjects
Details
- ISSN :
- 20452322
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....8d75d43ea93070fb52e493785f0264e0
- Full Text :
- https://doi.org/10.48550/arxiv.1409.8422