Postdoc Researcher Position Magnetization of correlated-electron quantum materials under intense magnetic fields (M/F)

Job Description

Missions

This project will consist in the development and use of new magnetization probes for the pulsed magnetic fields generated at the LNCMI-Toulouse. With this new setup, magnetization experiments will be performed on quantum materials under extreme conditions of intense magnetic fields (exceeding 90 T) and very low temperatures (down to 100 mK). Scientific targets will be to investigate the properties of quantum materials (UTe2, CeRh2Si2, TbB4 etc.) near metamagnetic transitions and unconventional superconducting phases.

Activity

Within step 1, magnetization probes will be developed, tested and compared before choosing the most optimal configuration. First experiments will be performed in a 70-T magnet, at variable temperatures from 1.5 to 300 K, with the aim to investigate correlated-electron quantum materials. A study of the superconductor UTe2 will be performed to extract the magnetic-field variation of the low-temperature Sommerfeld coefficient under magnetic fields of different directions. Other studies are planned, with the aim to characterize the magnetization plateaus of antiferromagnets (CeRh2Si2 and TbB4). Within step 2, magnetization probes will be implemented in magnets reaching more than 90 T and for a dilution fridge allowing to combine magnetic fields up to 60 T and temperatures down to 100 mK. A scientific target will be to characterize the hysteresis induced by the magnetic flux pinning by the superconducting vortices in UTe2. In parallel, the post-doctorant will be associated as co-local contact to studies of other quantum materials using his/her compensated-coil magnetization probe, in collaboration with LNCMI researchers or external visitors.

Your Profil

Skills

A PhD in experimental physics and a background in the study of correlated-electron systems are required. A strong motivation to perform cutting-edge experiments under extreme conditions is expected. For that purpose, good technical skills (or a willingness to acquire them) are essential. Large sets of data will be accumulated, and programing skills may also be useful to analyze the data. Fluent spoken and written English are needed to communicate efficiently the results (high-impact journals, talks in conferences etc.).

Your Work Environment

The Laboratoire National des Champs Magnétiques Intenses in Toulouse (LNCMI-T) is one of the few facilities worldwide delivering non-destructive pulsed magnetic fields up to more than 90 T. Such extremely high magnetic fields constitute a powerful tool for the study of condensed matter physics. In addition to the internal research performed by its staff, the LNCMI offers an access to its experiments under high magnetic field to external researchers, via the submission of scientific proposals evaluated by an international selection committee. The postdoctoral researcher will work in the scientific team 'Quantum conductors and magnets' of the LNCMI-T. He/she will collaborate with researchers and engineers at the LNCMI-T and researchers from the CEA-Grenoble and the Tohoku University in Japan.

Constraints and risks

Nothing to report

Compensation and benefits

Compensation

Between €3,041 and €4,395 gross monthly, depending on experience.

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

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.

CNRS

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