PhD student in theory/simulation (M/F)
New
- FTC PhD student / Offer for thesis
- 36 month
- 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
Spintronique et technologie des composants
Contract Type
FTC PhD student / Offer for thesis
Working hHours
Full Time
Workplace
38054 GRENOBLE
Contract Duration
36 month
Date of Hire
01/10/2026
Remuneration
2300 € gross monthly
Apply Application Deadline : 30 June 2026 23:59
Job Description
Thesis Subject
Spintronics proposes to address the energy challenge faced by information technologies by encoding information in the spin of electrons in addition to their charge. Magnetic tunnel junctions (MTJs), building blocks of the magnetic random access memory (MRAM) technology, are currently envisioned as stochastic neurons for unconventional, probabilistic, and bioinspired computing schemes with ultralow power consumption. For this purpose, junctions are designed so that thermal fluctuations can randomly flip the magnetization of the free magnetic layer at a scale of a few seconds and below. These junctions are referred to as superparamagnetic tunnel junctions (SMTJs).
The control over mean dwell times can be achieved via applied electric currents, which also enable interjunction coupling. Currents exert spin transfer torques (STT) on the magnetization of the free layer. The physics of the thermally assisted magnetization reversal under STT is not well described theoretically, where existing analytical models are limited to a macrospin (single-domain) picture and either negligible or over-critical current densities.
The aim of this thesis is to bridge this knowledge gap and study, by means of numerical simulations, and analytical and code developments, the thermally-assisted magnetization reversal of perpendicularly magnetized SMTJs under varying current densities. The work will first focus on a single SMTJ, and will then expand to several electrically coupled SMTJs. Computed mean dwell times will be compared to experimental measurements in SPINTEC, and will serve to guide the development of unconventional computing schemes.
Your Work Environment
The PhD will be conducted at the SPINTEC spintronics laboratory located on the CEA campus of the Grenoble scientific peninsula (more information: www.spintec.fr). It will be affiliated with the doctoral school of Physics at the University of Grenoble Alpes.
Constraints and risks
Security constraints associated with the CEA. A security clearance is required for access to the site.
Compensation and benefits
Compensation
2300 € 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 | UMR8191-LOUDES-001 |
|---|---|
| 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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