Center for Quantum Spintronics Senter for kvante-spinntronikk

2024 har vært nok et produktivt år ved QuSpin, der Senteret har arbeidet etter en revidert, videreutviklet, og dynamisk forskningsplan innenfor hovedområdene Dissipationless quantum spin transfer, Quantum Spin Dynamics, og Spin and Topology. Vi arrangerte en vellykket internasjonal konferanse, QuSpin 2024, i i juni 2024 i Trondheim, der våre samarbeidspartnere fra Tyskland og Nederland deltok, i tillegg til flere kjente internasjonalt profilerte forskere som inviterte foredragsholdere. Vi har så langt i 2024 publisert 32 artikler i internasjonalt ledende vitenskapelige tidsskrift som Nature, Physical Review Letters, og Physical Review B. Før året er omme vil dette antallet øke betraktelig. Tre av QuSpins professorer og forskere har i 2024 fått tildelt to FRIPRO-prosjekter som bygger videre på resultatene oppnådd så langt i QuSpin, og som vitner om den høye vitenskaplige kvaliteten ved Senteret.

QuSpin's principal goal will be to describe, characterize and develop recently identified quantum approaches to control electric signals, conceptually different from those existing today. Our vision is to trigger a revolution in low-power information and communication technologies in an energy-efficient society. In conventional electronics, the electric charge stores and processes information. In performing these tasks, the electron motion wastes energy by heating the surroundings. This heating prevents a further miniaturization of electronics devices. It is our hypothesis that the waste of energy can be circumvented by utilizing the dynamics of quantum entities other than the electron charge. The electron spin, the electron's magnetic moment, is a prime example of a quantum entity. Spintronics has already proven its worth by causing a revolution in data storage. Nevertheless, electronics and spintronics continue to function by electron transport, which inherently dissipates power due to resistive losses. QuSpin will develop new concepts for the utilization of spin and pseudo-spin quantum states in low-dissipation systems. Our aim is to control these states electrically in innovative nanostructured combinations of magnetic insulators, topological insulators, and superconductors. In insulators, there are no electric currents, but other quantum entities can flow with significant power reduction. In superconductors, there is zero dissipation associated with spin and charge transport. The research focuses on fundamental challenges in spintronics. A concerted effort is essential to realize electrically controlled spin signals in low power dissipation systems. QuSpin will reorganize condensed matter physics in Norway to train the next generation to develop further the research findings. We will bring together Norwegian researchers with international experts to put Norway at the forefront of advancing this key burgeoning area that enables innovative applications.