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Sujet de stage / Master 2 Internship

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Quantum thermal transport in Moire systems

Contact: Parmentier Francois, , francois.parmentier@cea.fr, +33 1 69 08 47 92
The objective of this project is to explore the thermal transport properties of exotic quantum states arising in graphene in presence of a moire potential. This potential is created by fine-tuning the alignment angle between several two-dimensional materials (graphene / graphene, graphene / boron nitride, etc) artificially stacked one onto another.
Possibility of continuation in PhD: Oui
Deadline for application:29/04/2022

Full description:
Graphene moire systems, in which a crystal of graphene is aligned with another two-dimensional material, have recently emerged as an extremely rich platform in which to explore new physics linked to topology and strong electronic correlations. This physics gives rise to electrically insulating phases, sometimes accompanied by dissipationless electronic conduction channels circulating along the edges of the sample. Most of the available experimental information about these phases stem from electrical transport measurement, which are fundamentally limited when one deals with electrically insulating systems. We propose to use heat transport measurements, recently developed in the Nanoelectronics group, to explore the hidden properties of those systems, such as the presence of chargeless collective modes carrying heat (and thus, information) across the sample. This project involves highly advanced experimental techniques, such as state of the art graphene van der Waals heterostructures fabrication, ultra-low temperature measurements, and high-sensitivity noise thermometry.
Technics/methods used during the internship:
Nanofabrication - Cryogenics - Low-noise measurements

Tutor of the internship


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