The FLUSPIN project is opening a 12-month postdoctoral position (with possible extension) to develop a theoretical framework that merges Kramers-type thermal activation concepts—established for equilibrium superparamagnetic systems—with a functional calculus approach. This method extends the Fokker-Planck equation to magnetization dynamics under colored noise, moving beyond standard Markovian limits. By incorporating spin-transfer torques, the combined formalism will study spintronic systems such as spin-transfer-torque magnetic tunnel junctions (SMTJs) and spin-torque nano-oscillators (STNOs) subject to arbitrary electric currents and complex noise, directly connecting theoretical predictions with experimental metrics like mean dwell times between metastable magnetization states (illustrated in Figure 1 of the original call).

The ideal candidate holds a PhD in theoretical condensed matter physics, theoretical spintronics/nanomagnetism, or statistical physics, with strong expertise in stochastic processes (Fokker-Planck equations, Langevin dynamics), non-equilibrium systems, and numerical methods for nonlinear differential equations. A foundation in spintronics—including spin-transfer torques, magnetic tunnel junctions, and noise effects—is appreciated, as is the capacity to extend analytical tools to non-Markovian regimes. Desirable qualifications include experience collaborating with experimental teams to interpret data on mean dwell times or nano-oscillator dynamics; familiarity with machine learning for stochastic systems or high-performance computing is advantageous.

Applications require a CV with publications, a two-page statement of research interests and motivation, up to two recommendation letters, and academic transcripts (including PhD certificate). Materials in English or French should be emailed to Dr. Louise Desplat and Dr. Pascal Thibaudeau with the subject line “Postdoctoral Application – Spintronic Fluctuations” by 15 September 2026. Shortlisted candidates will be interviewed online; the successful applicant is expected to begin a CEA contract on 1 December 2026, with some flexibility. The opening targets the advancement of non-equilibrium spintronics theory, offering a direct bridge to experimental validation in emerging device concepts.

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.

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