Missions

The main objective of the 18-months post-doc will be to perform the magnetotransport measurements on Hall cross-designed samples of topological insulator/ferromagnet heterostructures to demonstrate efficient magnetization manipulation thanks to charge current injection in BiSb.

Activités

- the sputtering growth of ultrathin magnetic films with perpendicular magnetic anisotropy on BiSb fabricated by the LAAS partner,
- the design of samples into Hall bars thanks to optical and electronic lithography,
- the magnetotransport measurement of the topological insulator / ferromagnet heterostructures at low and room temperatures.
- this works will be then extended to the topological insulator BiSbTeSe (larger bulk band gap than BiSb that would reduce bulk intrinsic conduction).

Compétences

- Magnetism of thin films (required)
- Experience in magnetotransport measurement (required)
- Experience in optical and electronic lithography (desired)
- Thin film growth, sputtering (optional)
- Programming skills in Labview, LabwindowsCVI, Matlab, etc (optional)
- Excellent organizational and scientific writing skills in English (required)
- Good communication skills (desired)

Contexte de travail

This work will be conducted within the frame of a LabeX NanoX research program (LPCNO / CEMES / LAAS). The post-doc will interact with the different partners of the project, participate in the design and the characterization of the heterostructures and communicate on the results.