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Reference : UPR2940-FLOPOI-032
Workplace : GRENOBLE
Date of publication : Friday, July 17, 2020
Type of Contract : FTC Scientist
Contract Period : 12 months
Expected date of employment : 1 October 2020
Proportion of work : Full time
Remuneration : Between 2648 € and 3053 € gross monthly salary according to experience
Desired level of education : PhD
Experience required : Indifferent
This activity is part of an ANR funded project which aims at developing building blocks for “Valleytronics” based on two-dimensionnal transition metal dichalcogenides (2D-TMDC). In this framework, a key ingredient is to produce “wafer size” layers of ferromagnetic 2D-TMDC. In a second stage, these layers should be integrated in van der Waals heterostructures. The postdoc will have to grow potentially magnetic 2D-TMDC by molecular beam epitaxy (MBE) and to characterize their electronic and magnetic properties by using both in-house instruments (scanning tunneling microscopy/spectroscopy, STM/STS) or synchrotron based techniques (X-ray circular magnetic dichroism and (spin-polarized) photoemission, XMCD and (SP)-ARPES).
- Préparation of 2D-TMDC samples by MBE (main task, responsability 50%),
- Characterization of their electronic structure by STM/STS and ARPES (main task, responsability 50%),
- Analysis of the magnetic properties of the samples by XMCD or SP-ARPES (main task, responsability 100%).
- Advanced knowledge in the fields of magnetism of low dimensionnal systems and in the electronic structure of TMDCs.
- Practice of ultra-high vacuum (UHV) techniques and of basic surface characterization techniques (LEED, RHEED),
- Expertise in synchrotron based techniques to investigate the magnetic properties of 2D samples, such as XMCD or SP-ARPES.
The host Institution (Néel Institute, CNRS and UGA) is one important lab (450 persons) for condensed matter physics studies in France. It is located in Grenoble, close to the ILL and ESRF sites. The postdoc will work with two groups of Néel Institute. The first one is the QuNES team, where STM/STS measurements and substrate preparation will be made. The second one is the NPSC team for MBE growth and additional sample characterizations. This last part of the work will take place on a CEA site.
Constraints and risks
- No specific risks except those present in any solid state physics laboratory (cryogenic, high voltage and chemical risks).
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