2D magneter för spintroniska och magnoniska applikationer

Tidsperiod: 2020-01-01 till 2023-12-31

Projektledare: Yaroslav Kvashnin

Finansiär: Vetenskapsrådet

Bidragstyp: Bidrag för anställning eller stipendier

Budget: 4 000 000 SEK

For a very long time, magnetic order in two dimensions was not expected to exist. Everything changed just two years ago when the first-ever 2D ferromagnet, a monolayer of CrI3 was obtained. This finding has triggered an enormous research activity and recently even room temperature ferromagnetism has been reported in a similar material. These magnets are extremely promising for technological applications, such as ultra high-density information storage. However, little is known about how they will perform in an actual device and whether it is possible to tune their properties.The purpose of this project is to obtain fundamental understanding and gain control over dynamical electronic and magnetic properties of 2D magnets with the help of first-principles simulations. The work will be done together with an experimental group from my department and will benefit from the synergy between theory and experiment.The first goal will be to reproduce various experimental results from optical absorption and photoemission to magnetic excitations and spin transport measurements. This will allow me to identify an appropriate model for these materials and proceed to the computational design and engineering of the desired magnetic properties by means of external stimuli and doping. Finally, the topological properties of magnetic excitations will be addressed and routes to realize a topological magnon insulator, based on existing 2D magnets will be identified.