Actualités


Resumption of activities at Institut Néel

The resumption of activities on the site is facilitated since June 22nd, in compliance with the rules of physical distance and other barrier gestures in force at the laboratory.
Good resumption !

Reprise d’activités à l’Institut Néel

La reprise d’activités sur le site est facilitée depuis le 22 juin 2020, dans le respect des règles de distanciation physique et des autres gestes barrières en vigueur au laboratoire.
Bonne reprise à toutes et tous !

Un Prix "Dominique Givord" a été décerné par l’European Magnetism Association !

En 2019, l’Association européenne du magnétisme (EMA) a créé deux prix : le prix "Young Scientist" décerné chaque année, et le prix "Dominique Givord" décerné tous les 3 ans, pour honorer les avancées du magnétisme en Europe.
Wolfgang Wernsdorfer (KIT) est le premier lauréat à recevoir ce prix... La suite ici.

Publications récentes

Observation of quantum many-body effects due to zero point fluctuations in superconducting circuits

Nature Communications, November 20, 10, 5259 (2019) Pdf

Helical quantum Hall phase in graphene on SrTiO3

Science, 781–786 (2020), Pdf

Faits marquants

A Single-Electron Transistor breaks the law of thermal conductivity

Good conductors of heat are usually also good conductors of electricity. The celebrated Wiedemann-Franz law states that, at a given temperature, the thermal conductivity of a metal is proportional to its electrical conductivity. Yet, a joint group of researchers of the Institut NEEL and Aalto University (Finland) has led an experiment revealing that this law is violated in a specific quantum electronic device, a single-electron transistor. Full text.

Dirac electrons’ spins get locked on a topological insulator’s surface

"Topological insulators" are a novel class of materials attracting great interest both theoretically and experimentally, because of the unique electronic and spin properties arising at their surfaces. Their defining characteristic is that they are insulating in their interior but they have conducting surface states. The surface electrons and hole states have a remarkable « Dirac-like » energy dispersion function, i.e. their kinetic energy is linear in their momentum, not quadratic. Also the surface electrons show the property of perpendicular "spin-momentum locking" : the orientation of the electron spins is locked perpendicular to the direction of the electron current flow, a feature potentially useful for spintronics and quantum technologies. Full text.


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