Bulletin of the American Physical Society
APS March Meeting 2018
Volume 63, Number 1
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session G60: Poster Session I
2:00 PM,
Tuesday, March 6, 2018
LACC
Room: West Hall A
Abstract ID: BAPS.2018.MAR.G60.177
Abstract: G60.00177 : Switchable and tunable Rashba-type spin splitting in covalent perovskite oxides*
Presenter:
Julien Varignon
(Unité Mixte de Physique CNRS Thales, Université Paris-Saclay)
Authors:
Julien Varignon
(Unité Mixte de Physique CNRS Thales, Université Paris-Saclay)
Jacobo Santamaria
(GFMC, Departamento Física Aplicada III, Universidad Complutense Madrid)
Manuel Bibes
(Unité Mixte de Physique CNRS Thales, Université Paris-Saclay)
We identify a bismuth-based perovskite with a giant, electrically-switchable Rashba interaction whose amplitude can be controlled by both the ferroelectric polarization and the breathing mode of oxygen octahedra. This particular structural parameter arises from the strongly covalent nature of the Bi-O bonds, reminiscent of the situation in perovskite nickelates. Our results not only provide novel strategies to craft agile spin-charge converters but also highlight the relevance of covalence as a powerful handle to design emerging properties in complex oxides.
*Work supported by the ERC grant MINT (#615759).
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAR.G60.177
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