Missions

The successful candidate will join the MegaGauss team at Laboratoire Nationale des Chmpas magnetique Intences (LNCMI). He/she will develop the instrumentation to study condensed matter systems under Megagauss magnetic fields by means of quasi-optical conductivity measurements in the GHz range and THz spectroscopy.

Activités

The successful candidate will contribute to the development of novel GHz and THz experimental techniques within the MegaGauss team at LNCMI. Together with other team members, he/she will design the experimental setup, oversee its fabrication, assembly and testing, before conducting his/her own spectroscopy projects. The candidate will also serve as a local contact, supporting external researchers in conducting their experiments using the MegaGauss facility.

Compétences

The successful candidate will join the MegaGauss team in an interdisciplinary environment that demands a broad range of competencies. We are looking for someone who:
Holds a PhD in physics, instrumentation, or a related field.
Has substantial experience in generating (semi)destructive magnetic fields above 100 T.
Is skilled in cryogenics and high-frequency data acquisition.
Experience in THz spectroscopy, laser magneto-spectroscopy, and/or high-frequency electronics will be considered an asset.

Contexte de travail

The National Laboratory for Intense Magnetic Fields (LNCMI) is a major research facility serving the international scientific community. Its core missions include the development of technologies related to high magnetic fields, their application in cutting-edge research, and the hosting of external researchers. As a member of the EMFL (European Magnetic Field Laboratory), LNCMI actively contributes to scientific progress at the European level.

The Toulouse site hosts the MegaGauss (MG) installation, which specializes in generating pulsed magnetic fields exceeding 100 tesla. Due to material constraints, such fields can only be produced using (semi)destructive methods. Only three facilities of this kind exist worldwide — in the United States (currently offline), in Tokyo (Japan), and in Toulouse (France), where it is known as the MegaGauss installation. Depending on coil size, this setup can reach up to 300 T with pulse durations of approximately 5 µs.

The spatial and temporal constraints of these fields, along with the unavoidable presence of strong induced electric fields, make advanced physical measurements particularly challenging. To date, only optical spectroscopy (VIS–MIR) and magnetization measurements have been successfully implemented. The current project aims to expand these capabilities to include GHz-frequency transport measurements and THz spectroscopy in fields up to 200 T. These techniques are widely used at lower fields in areas such as superconductivity, magnetism, and semiconductor physics, and are considered essential tools in high-field research.

Contraintes et risques

The work takes place in an environment characterized by extreme conditions, requiring an absolute respect of safety rules and procedures. This concerns the use of high-power radiation sources, cryogenic temperatures and pulsed power devices characterized by high-voltages and extreme electromagnetic forces.
The project is part of collaboration with the University of Tokyo and may give rise to occasional travels.
The activity is not compatible with remote working.