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

Fast High-Fidelity Quantum Nondemolition Qubit Readout via a Nonperturbative Cross-Kerr Coupling

Physical Review X 10, 011045, 25 feb. 2020 Pdf

Sound-driven single-electron transfer in a circuit of coupled quantum rails

Nature Communications, 10, 4557 (2019) Pdf

Faits marquants

Ultrasensitive and universal vectorial force-field sensor

Due to their ultralow mass, nanometre-scale mechanical oscillators can be used to convert a very weak force into a measurable displacement. By measuring the vibrations of a long, cylindrical, nanowire oscillator, and recording their modifications as the nanowire is scanned through a force field (e.g. an electrostatic field), one can measure and map the variations of the magnitude and direction of the force field with attonewton (10-18 N) precision. Lateral force-field gradients couple the nanowire’s two transverse eigenmodes, i.e. the transverse modes of oscillation in two perpendicular directions, causing frequency shifts and rotation of the eigenmode basis. Full text.

New ceramics for domestic and cryogenic magnetic refrigeration

A continuously growing energy demand worldwide intensifies the need for development of new, high-performance energy conversion and storage technologies. A large part of energy consumption is due to cooling in the industrial sectors such as food conservation as well as air-conditioning for housing, buildings and vehicles. Hence, refrigeration appears as a major concern for the future involving both energy consumption and impact on the environment. To date, the energy for refrigeration comes primarily from fossil fuels which produce CO2, and it uses HFCs (hydrofluorocarbon type) gases for the classical gas-compression cycle. Both these gases pollute the environment. From this point of view, cooling based on using magnetocaloric ceramic oxides as the refrigerant material appears as a promising alternative. Full text.

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