A joint publication with Helen Gomonay about magnetoelastic effects at the interface of antiferromagnetic-ferromagnetic bilayers has been published in Physical Review B.
They show that surface acoustic waves at the interface of both magnets can be used to find complex magnetic textures.They are able to connect the magnetoelastic resonance to spin spirals in both layers.The reulst add to the emergent research in using noncollinear magnetism in spintronics devices.
You can find the publication under PhysRevB.105.144432.
A joint publication with Helen Gomonay about ultrafast manipuation of antiferromagnets has been published in Communications Physics.
They show a theoretical mechanism to imprint spin chirality into collinear antiferromagnets with the use of laser pulses. These pulses then can lead to quasi-stable ciral states. The results provide a more detailed insight on the interactions between light and chiral magnetism.
You can find the publication under nature.com/articles/s42005-022-00840-3.
A publication from the team of antiferromagnetic spintronics about giant and tunneling magnetoresistance in unconventional collinear antiferromagnets has been published in Physical Review X.
They presentc archetype model mechanisms for the giant and tunneling magnetoresistance effects in multilayers of such materials. These mechanisms are linked to real materials through ab-initio calculations. Further they show how their models can allow for magnetic excitations by teh spin transfer torque.
You can find the publication under PhysRevB.12.011028.
A joint publication from the team of antiferromagnetic spintronics about domain walls driven by elastic defects has been published in Nature Communications.
They show that the domain structure in thin films of the antiferromagnet CuMnAs is dominated by elastic defects. These defects determine the location and orientation of 90° and 180° domain walls.The results show the impact of defects on the antiferromagnetic domain structure and provides a route to optimize the performance of devices.
You can find the publication under nature.com/articles/s41467-022-28311-x.
A joint publication of the Kläui - Lab together with Olena Gomonay and Jairo Sinova about magnon transport in weak antiferromagnets has been published in the Journal of Magnetism and Magnetic Materials.
In more detail, they studied the antiferromagnet hematite with the Dzyaloshinskii-Moriya interaction (DMI). The results show that the DMI gives a new reconfigurability in the long distance magnon transport within thin films. This introduces a hysteresis in the system as a consequense of a competiotion of the Zeeman field and the effective field of the DMI.
You can find the publication under j.jmmm.2021.168631.
A publication by Ricardo Zarzuela and Jairo Sinova about the spin-charge transport theory and spin-transfer physics in frustrated magnets has been published in Physical Review B.
They present a new theory based on the doped Hubbard model and the slave-boson formalism. The results of their work point towards possible new Hall physics thhat was previously unanticipated in the studied frustrated materials.
You can find the publication under PhysRevB.105.024423.
Jairo Sinova has become an Alexander von Humboldt Foundation Henriette Herz Scout, selected in November 2021 with another 18 scientists in Germany. JGU has been one of the most successful in this program in this round (see press release, in German). Being a AvH Scout means that Sinova can directly nominate an outstanding young scientist for a prestigious AvH Fellowship directly, without having to go through a long application process and can join the group in a relatively short (a few weeks) time.
A joint publication of the London Centre for Nanotechnology and the Catalan Institute of Nanoscience and Nanotechnology together with Jairo Sinova about Van der Waals layered systems has been published in Nature Reviews Physics.
They present fundamentals on van der Waals magnetism and spin–orbit coupling effects in 2D systems. It is discussed how the coexistance of both effects could establish new ways to engineer robust spin textures. The results will help in designing future non-volatile memory devices that utilize the unique properties of 2D materials.
You can find the publication under nature.com/articles/s42254-021-00403-5.
Congratulations to Libor Šmejkal for winning the Czech Head Doctorandus 2021 award for natural sciences. The award is announced by the Czech Head together with the Government of the Czech Republic. It is part of the Czech Head Awards which are the most prestigious Czech awards for science and research and often called "Czech Nobel Prize". Libor was awarded for his pioneering work in the field of topological antiferromagnetic spintronics with low loss- and highly mobile electrons, which promise a wide range of applications in science and technology.
We are very pleased to welcome Lennart Piotraschke, Martin Münzenberg and Matthias Greber to the INSPIRE group. They join the group as scientific student assistants. We are looking forward to a successful collaboration.