Description du projet
Une nouvelle façon d’aborder la dissipation d’énergie
Dans le monde des appareils électroniques, la dissipation d’énergie est un problème crucial. La perte d’énergie causée par le transport de charges entrave non seulement les performances de l’électronique conventionnelle et de la spintronique, mais contribue également à la consommation d’énergie mondiale. Dans ce contexte, le projet INSULATRONICS, financé par l’UE, exploitera les isolants antiferromagnétiques et ferromagnétiques pour contourner les pertes d’énergie associées au transport de charges. Grâce à des techniques innovantes telles que les couples de transfert de spin et le pompage de spin, les chercheurs s’efforceront de réduire considérablement la consommation d’énergie. La réussite de cette entreprise pourrait ouvrir la voie à des oscillateurs, des dispositifs logiques, des mémoires et des traitements quantiques très efficaces. Suivez les progrès des scientifiques qui réécrivent les règles de la technologie économe en énergie.
Objectif
The proposal aims to facilitate a revolution of information and communication technologies by controlling electric signals with antiferromagnetic insulators and ferromagnetic insulators. We recently discovered that antiferromagnets can be active components in spintronics devices despite their lack of a macroscopic magnetic moment, and even when they are insulating.
Conventional electronics- and spintronics-based logic and memory devices, interconnects, and microwave oscillators are based on (spin-polarized) charge transport, which inherently dissipates power due to ohmic losses. The research proposed seeks to determine the extents to which “Insulatronics” has the potential to control the electric and thermal signal generation, transmission, and detection in more power-efficient ways.
Insulatronics is profoundly different because there are no moving charges involved so the power reduction is significant. We hope to establish the extents to which spin-waves and coherent magnons in antiferromagnetic insulators and ferromagnetic insulators can be strongly coupled to electric and thermal currents in adjacent conductors and utilize this coupling to control electric signals. The coupling will be facilitated by spin-transfer torques and spin-pumping – a technique we pioneered – as well as spin-orbit torques and its reciprocal process of charge-pumping.
The core of this project focuses on the theoretical and fundamental challenges facing Insulatronics. Beyond the duration of the project, if we are successful, the use of spin signals in insulators with extremely low power dissipation may enable superior low-power technologies such as oscillators, logic devices, interconnects, non-volatile random access memories, and perhaps even quantum information processing.
Champ scientifique
- social sciencespolitical sciencespolitical transitionsrevolutions
- natural sciencesphysical scienceselectromagnetism and electronicsspintronics
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcomputer hardwarequantum computers
- natural sciencesphysical sciencestheoretical physicsparticle physicsphotons
Programme(s)
Thème(s)
Régime de financement
ERC-ADG - Advanced GrantInstitution d’accueil
7491 Trondheim
Norvège