The research in the group combines fundamental and applied research in the field of spintronics.

There are two main efforts: multilevel magnetic memory and planar Hall effect sesors.

Multilevel Magnetic memory: Since February 2024, Prof. Klein is the coordinator of an EIC Pathfinder Open consortium (Multispin. AI) that focuses on developing novel neuromorphic hardware based on multi-level magnetic tunnel junctions which is expected to make AI-related computations faster and more efficient energetically. See the website of the consortium and the university announcement for more details. Also, see some news reports on the basic ideas behind the multilevel memory.

Planar Hall effect (PHE) sensors: Our planar Hall effect (PHE) sensors fabricated in various configurations have demonstrated a very impressive combination of properties.  An elliptical PHE sensor with and without magnetic flux concentrators exhibits a resolution of  5 pT/√Hz @ 10 Hz and  24 pT/√Hz @ 50 Hz , respectively. A miniature PHE gradiometer suitable for operating in millimeter scale environments exhibits resolutions of 26 pT/mm/ √Hz @ 50 Hz. A flexible PHE sensor shows a resolution better than 200 pT/√Hz @ 10 Hz. Furthermore, a PHE sensor can be fabricated with more than multiple easy axes allowing for measuring two components of the magnetic field in exactly the same location. See here a recent university post on the sensors.