Figure 1 Illustration of the problem addressed by the
project. A magnetic tunnel junction (MTJ) under electric
current fluctuates between two metastable states A and
B (magnetization states, oscillator phases), driven by
various noise sources(thermal, electronic, etc).
Position: The project FLUSPIN is opening a 12-month position (possible extensions) for a postdoctoral researcher to explore the integration of Kramers-type thermal activation theories—validated for equilibrium conditions in superparamagnetic systems—with a functional calculus approach. This approach extends the Fokker-Planck equation (FPE) to magnetization dynamics under colored noise, moving beyond the usual Markovian approximations. By incorporating spin-transfer torques into this formalism, the combined framework will enable the study of spintronic systems (e.g., SMTJs, STNOs) under arbitrary electric currents and complex noise environments, bridging theoretical predictions with experimental observations like mean dwell times.
The ideal candidate will hold a PhD in theoretical condensed matter physics, theoretical spintronics/nanomagnetism, or statistical physics, with demonstrated expertise in stochastic processes (including FPEs and Langevin dynamics), non-equilibrium systems, and numerical methods for non-linear differential equations. A foundation in spintronics—particularly spin-transfer torques, magnetic tunnel junctions, and noise effects—is appreciable, alongside the ability to extend analytical formalisms to non-Markovian regimes. Experience collaborating with experimental teams to interpret data (e.g., mean dwell times, nano-oscillator dynamics) is desirable, while familiarity with machine learning for stochastic systems or high-performance computing would be advantageous.
How to apply: Submit a CV with publications, including research interests and motivation (2 pages maximum), up to 2 recommendation letters (from academic supervisors/collaborators), and academic transcripts (including PhD certificate).
All application materials should be submitted in English or French via email to Dr Louise Desplat, and Dr Pascal Thibaudeau with the subject line clearly marked as “Postdoctoral Application – Spintronic Fluctuations”. The selection process will involve a deadline for submissions (15/09/2026), after which shortlisted candidates will be invited for an online interview to discuss their technical expertise and alignment with the project. The successful candidate is expected to start a CEA contract position by 01/12/2026, with some flexibility.
Offer flyer: here.
