A joint publication with Helen Gomonay about spintronics in insulating 3d metal oxides with antiferromagnetic coupling has been published in Applied Physics Letters.
They describe that antiferromagnetic transition metal oxides are an established and widely studied materials system in the context of spin-based electronics, commonly used as passive elements in exchange bias-based memory devices. Currently, major interest has resurged due to the recent observation of long-distance spin transport, current-induced switching, and THz emission. As a result, insulating transition metal oxides are now considered to be attractive candidates for active elements in future spintronic devices. They discuss some of the most promising materials systems and highlight recent advances in reading and writing antiferromagnetic ordering. This article aims to provide an overview of the current research and potential future directions in the field of antiferromagnetic insulatronics.
You can find the publication under Appl. Phys. Lett. 122, 080502 (2023).
A joint publication with Jairo Sinova and Libor Šmejkal about the growth pathways and structural properties of the manganese silicides has been published in Physical Review Materials.
They describe that the magnetically ordered phases of the Mn5Si3 crystal are proving to be prototypes for the study of the new fundamental spin physics related to the spontaneous breaking of the time-reversal symmetry despite a zero net magnetization. Here, they report on a route to grow epitaxial Mn5Si3 thin films on Si(111). The growth pathways and structural properties of the manganese silicides can be rationalized in terms of reactions maximizing the free-energy lowering rate. Moreover, they found that the magnetic and the magnetotransport properties can be used as an efficient tool to track both Mn5Si3 crystallinity and proportion in the deposited layers.
You can find the publication under Phys. Rev. Materials 7, 024416 (2023).
A joint publication with Helen Gomonay about antiferromagnetic hysteresis above the spin flop field has been published in Physical Review B.
They demonstrate that external magnetic fields change the magnetic anisotropy in the antiferromagnet CoO. THis is shown by measuring hysteresis curves for magnetic fields higher than the spin flop field. This behavior is shown to agree with the presence of the unquenched orbital momentum, which can play an important role in antiferromagnetic spintronics.
You can find the publication under PhysRevB.107.L060403.