Welcome to the magnetism group!
We are dedicated to cutting-edge research in the field of magnonics and related areas combined with excellent teaching.
Magnonics is a subfield of spintronics, which addresses the utilization of the spin degree of freedom for applications in information and communication technologies. We study „magnetic waves“, which are spin waves and their quanta called magnons, and we address new fundamental phenomena and their potential for applications. A particular focus is on macroscopic quantum phenomena such as supercurrents and their utilization, as well as on the development of magnonic devices for the information technology.
Our research is embedded in the Collaborative Research Center 173 „Spin+X“ funded by the Deutsche Forschungsgemeinschaft, as well as by several national, European and international projects. We offer opportunities for qualification in the frames of student assistantships, bachelor, master diploma and PhD projects in an international environment.
We work closely with the Nanoscale Magnonic Hybrids Research Group, led by Philipp Pirro.
News

02-2026
Prof. Burkard Hillebrands hat gemeinsam mit der Coachin Martina Grünewald-Ernst einen Podcast zum Thema Mentoring & Coaching gemacht: "Exzellenz beginnt im Kopf – Wissenschaft machen, Karriere gestalten“. Der Podcast (in deutscher Sprache) richtet sich an Postdocs und Wissenschaftler im Bewerbungsprozess für eine Professur, sowie an frisch berufene Professoren. In dem Podcast erläutern sie ihre Arbeit, siehe https://optimas.uni-kl.de/veranstaltungen/coaching-mentoring
02-2026

📰 Editors’ Suggestion in Physical Review B
Our paper "Enhancement of magnon flux toward a Bose–Einstein condensate" has been selected as an Editors’ Suggestion in Physical Review B (Phys. Rev. B 113, 014409, 2026).
Read the article on APS Journals
In this combined theoretical and experimental study, the authors investigate angle-dependent parametric pumping of magnons in yttrium iron garnet. They demonstrate that the direction of the magnetic field governs magnon scattering pathways via kinetic instability. Parallel pumping lowers the threshold, whereas perpendicular pumping increases the magnon population near the spectral minimum, thereby optimizing the magnon flux into the Bose–Einstein condensate.
Recent Publications
Enhancement of magnon flux toward a Bose–Einstein condensate
F. Kühn, M.R. Schweizer, T. Azevedo, V.I. Vasyuchka, G. von Freymann, V.S. L’vov, B. Hillebrands, and A.A. Serga
Phys. Rev. B 113, 014409 (2026)
Bose–Einstein condensation threshold in a parametrically populated magnon gas (Review article)
G.A. Melkov, A.N. Slavin, B. Hillebrands, and A.A. Serga
Low Temp. Phys. 51, 921 (2025)
More Publications
comments to: webhillebrands(at)uni-kl.de







