Bridging together material science, ferroelectricity and spin electronics in antiferromagnetic perovskite oxides, CITRON will explore new routes for tailoring multifunctional properties – by design – in vanadate-based systems, especially for the spin manipulation operated by an electric fields.

Design & control of spin, orbital and charge orders in vanadates
Image caption: The CITRON’s approach. Starting from the manipulation of electron degrees of freedom in RVO3 to promote magneto-electric coupling that we exploit in spin Hall effect and related effects for spin transport phenomena.

Summary: Bridging together material science, ferroelectricity and spin electronics in antiferromagnetic perovskite oxides, CITRON will explore new routes for tailoring multifunctional properties – by design – in vanadate-based systems, especially for the spin manipulation operated by an electric fields.

The project will be organized towards 4 main objectives:
(i) grow and design epitaxial RVO3 thin films and superlattices in order to tailor the electron degrees of freedom (spin, orbital charge) the lattice distortions and atomic arrangements.
(ii) characterize – in depth – the crystalline structure and interactions using advanced characterization tools and determine the intimate couplings and interactions at the microscopic scale.
(iii) Unravel the ferroelectric character of designed R’VO3/RVO3 superlattices and its relation to the crystalline structure through epitaxial/chemical strain engineering.
(iv) assemble the charge order and spin order building blocks for the electric control of magnetic states in RVO3-systems and spin transport phenomena.

Funding: 424,480 k€

Scientific project timeline:  01/01/2022 – 31/12/2025

ANR link: https://anr.fr/Projet-ANR-21-CE09-0032

Participants

Institut Jean Lamour (IJL) (Nancy, France)

CRISMAT (Caen, France)

Contact