Spin Orbit Torque Mram Based On Topological Insulators

2 semanas atrás


Porto, Portugal Cnrs Tempo inteiro

Organisation/Company: CNRS
Department: Laboratoire d'analyse et d'architecture des systèmes
Research Field: Physics » Condensed matter properties, Physics » Solid state physics, Physics » Surface physics
Researcher Profile: First Stage Researcher (R1)
Country: France
Application Deadline: 15 Dec 2024 - 00:00 (UTC)
Type of Contract: Temporary
Job Status: Full-time
Hours Per Week: 35
Offer Starting Date: 1 Feb 2025
Is the job funded through the EU Research Framework Programme? Not funded by a EU programme
Is the Job related to staff position within a Research Infrastructure? No
Offer Description The main objective of this Post-Doctoral project is to integrate a magnetic layer on BiSbTeSe and to control its magnetization. It is important to note that although perpendicular magnetization anisotropy (PMA) of the ferroelectric layer is preferred for devices, development and quantification of SOT properties can be achieved with in-plane magnetization of the ferroelectric layer. Here, we propose to use CoFeB, known to promote PMA via interface anisotropy and bulk properties, and which can be used as the free layer of a magnetic tunnel junction. For this project, we propose to integrate a CoFeB layer on a layer of BiSbTeSe developed at LAAS, to structurally and electrically characterize the stacks and to study the influence of a buffer layer (Ti, Pt or Cr) on the properties of the ferroelectric layer.
Clean room work including:
Deposition of magnetic layers by sputtering techniques
Structural characterization of layers by SEM, XRD, AFM and TEM
Optical characterization of magnetic properties by MOKE
Fabrication of micro and nano devices
Characterization of electrical transport properties: Hall effect
The research work will be carried out in the MPN group of LAAS-CNRS under the direction of Dr Sébastien Plissard. The candidate will benefit from the laboratory's state-of-the-art cleanroom environment and the group's extensive knowledge in the areas of topological insulator growth, high mobility materials, nanofabrication and characterization of materials. Potential candidates must demonstrate knowledge or experience in nanotechnology, thin film deposition, materials science, materials characterization and nanofabrication.
Minimum Requirements: A PhD in condensed matter physics with experience in microfabrication and structural and electrical characterizations of magnetic materials.

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