(M/F) Electrical and current-gradient control of orbital torque using light elements
New
- FTC PhD student / Offer for thesis
- 36 mounth
- BAC+5
This offer is available in English version
This offer is open to people with a document recognizing their status as a disabled worker.
Offer at a glance
The Unit
Laboratoire Albert Fert
Contract Type
FTC PhD student / Offer for thesis
Working hHours
Full Time
Workplace
91767 PALAISEAU
Contract Duration
36 mounth
Date of Hire
10/08/2026
Remuneration
between 3131,32 et 4341,70€ gross monthly
Apply Application Deadline : 13 April 2026 23:59
Job Description
Thesis Subject
The use of the orbital polarization and orbital torques (OT) represents a clear perspective to enhance operations efficiency of spintronic devices. The reason is that the generation of our-of-equilibrium orbital polarization, unlike the spin counterpart, does not require the action of any spin-orbit coupling as a perturbation, to be implemented. With the OT, one can already anticipate a severe reduction of the critical currents for magnetization switching in corresponding devices.
In this project, we first plan to make optimized engineering of metal stacking involving light elements promoting the required orbital polarization and demonstrate the enhancement of the efficiency or figure of merit of the stacks. Moreover, (ii) by using and combining various experimental techniques and methods available at the laboratory (harmonic Hall, spin pumping, FMR linewidth analysis) among which ultrafast optical excitation (THz-TDS), we will benchmark the orbital generation, propagation and orbital currents and corresponding torque efficiencies (orbital Hall angle, orbital Rashba-Edelstein length, decoherence length) in these multilayers and at their interfaces. We will design on 200 nm or less magnetic memory elements made by e-beam lithography to achieve the proof of concept of low energy writing operation using the OT. The third part (iii) of the experimental task will be to introduce and demonstrate a gate voltage control of the OT-driven magnetization switching. (iv) The overall following data and analyses of the different physical effects (orbital vs. Spin contribution) will be accompanied by the development of advanced theory/model/numerical simulations and possibly DFT output.
Your Work Environment
MSCA “ORBIS” thesis project, for which a PhD student will be recruited to the laboratory as part of a European consortium involving 16 academic laboratories and 8 industrial partners in the field of orbitronics.
Compensation and benefits
Compensation
between 3131,32 et 4341,70€ gross monthly
Annual leave and RTT
44 jours
Remote Working practice and compensation
Pratique et indemnisation du TT
Transport
Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€
About the offer
| Offer reference | UMR137-HENJAF-017 |
|---|---|
| CN Section(s) / Research Area | Condensed matter: electronic properties and structures |
About the CNRS
The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.
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