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Portail > Offres > Offre UMR5672-AUDBIE-006 - Post-doc Résonance Magnétique en champ proche avec des circuits supraconducteurs H/F/NB

Post-doc in Near-Field Spin Microscopy using Superconducting Circuits H/F/NB

This offer is available in the following languages:
Français - Anglais

Date Limite Candidature : mardi 7 février 2023

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General information

Reference : UMR5672-AUDBIE-006
Nombre de Postes : 1
Workplace : LYON 07
Date of publication : Tuesday, January 17, 2023
Type of Contract : FTC Scientist
Contract Period : 24 months
Expected date of employment : 1 March 2023
Proportion of work : Full time
Remuneration : starting from 2690€ gross mensual salary, depending on experience
Desired level of education : PhD
Experience required : 1 to 4 years


The post-doctoral project will focus on the development and construction of a near-field imaging tool for electron paramagnetic resonance (EPR) spectroscopy based on quantum circuit technology. The objective of the project is to detect and characterize the spins present on the surface at a resolution of 100 nm, with a spectral resolution allowing their identification. The use of quantum circuit techniques, in particular low mode volume, high quality factor superconducting resonators and quantum-limited amplifiers, will provide the resolution necessary to create the imaging probe [1-2]. In particular, the candidate will work to build a three-dimensional scanning near-field probe to extend these initial experiments to near-field detection. Successful implementation of these circuits will allow the candidate to perform novel characterizations on many condensed matter devices, including the contaminants that currently limit quantum circuits performances. The post-doc will take place in the Quantum Circuits group at ENS Lyon, which is an expert in quantum circuit technologies for quantum sensing and quantum information processing.
[1] A. Bienfait et al., Nature Nanotechnology, 11, 253–257 (2016)
[2] V. Ranjan et al., Applied Physics Letters 116 (18), 184002 (2020)


Development of a cryogenic 3D scanning microwave probe.
Simulation, fabrication, implementation and optimization of superconducting microwave resonators for the detection of electronic spins.


Required knowledge:
- Expert in cryogenic scanning measurements and/or expert in superconducting circuits and/or expert in pulsed electron spin resonance experiments
- Microwave engineering
- Mechanical and electrical engineering
- Quantum mechanics,
- Magnetic resonance
- Superconductivity
- Low temperatures measurements

Desirable skillset:
- Expert in microwave measurements
- Expert in low-temperature experimental physics
- Expert in programming languages (Python)
- Expert in Computer-assisted instrumentation and experimental data acquisition

Organization skills: supervising students, animating a meeting, keeping a science watch.
Respecting security and safety regulations.

Work Context

The candidate will be integrated in the research group 'quantum circuits' at the physics laboratory of ENS de Lyon (physinfo.fr). He will have access to numerical tools, and nanofabrication and cryogenics equipment.

Constraints and risks


Additional Information

Position supported by an ERC Starting Grant

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