General information
Offer title : Postdoctoral researcher (M/F) : Graphene Hall effect sensor, fabrication and modelling (H/F)
Reference : UMR5215-BENLAS-002
Number of position : 1
Workplace : TOULOUSE
Date of publication : 27 January 2026
Type of Contract : Researcher in FTC
Contract Period : 10 months
Expected date of employment : 2 March 2026
Proportion of work : Full Time
Remuneration : €3041 gross monthly salary
Desired level of education : Doctorate
Experience required : 1 to 4 years
Section(s) CN : 09 - Condensed matter: electronic properties and structures
Missions
The postdoctoral researcher will be primarily responsible for fabricating graphene-based Hall effect sensors using various technologies, including, CVD graphene, exfoliated graphene, encapsulated graphene. Their responsibilities will also include comprehensive characterization of the magneto-transport properties of the sensors, focusing on key parameters such as bias current, doping, temperature, applied magnetic field, and sensor geometry.
The experimental data collected will be used to develop and refine a numerical model capable of quantitatively simulating the behavior of the sensors under diverse experimental conditions. This should enable the identification of optimal operational conditions to maximize sensor performance, particularly in terms of magnetic field resolution, and energy efficiency.
This work is part of an effort to enhance the sensitivity and adaptability of graphene-based Hall effect sensors for advanced applications.
Activities
- Graphene and boron nitride exfoliation
- CVD graphene layer transfer
- Optical and electron-beam lithography
- Raman spectroscopy
- Electrical measurements under magnetic field and at low temperatures
- Modeling
Skills
- Cleanroom fabrication techniques
- Photolithography and electron-beam lithography
- In-depth knowledge of solid-state physics and condensed matter physics
- Expertise in magnetotransport
Work Context
The Laboratory of Physics and Chemistry of Nano-Objects (LPCNO), located on the INSA Toulouse campus, brings together three experimental physics teams specializing in magnetism and magnetotransport, quantum optoelectronics, and nanofabrication and microfluidics. It also includes an experimental chemistry team focused on organometallic growth and a theoretical physics/chemistry team. The LPCNO features a state-of-the-art platform for the fabrication and characterization of 2D material-based heterostructures, recognized both nationally and internationally. The postdoctoral researcher will join the "Nanomagnetism" team and will have access to the Exfolab platform, as well as the team's magnetotransport measurement equipment. The initial 10-month contract may be extended through ANR funding.