On Tuesday December 16^th 2025, we have the pleasure to welcome in SPINTEC Helena Reichlova from Institute of Physics ASCR, Prague. She will give us a seminar at 15:00 entitled : Spin transport experiments in altermagnets

Place : IRIG/SPINTEC, room 447 CEA Building 10.05 (presential access to the conference room at CEA in Grenoble requires an entry authorization. Request it before december 05^th at admin.spintec@cea.fr)

video conference : https://univ-grenoble-alpes-fr.zoom.us/j/98769867024?pwd=dXNnT3RMeThjYStybGVQSUN0TVdJdz09
Meeting ID: 987 6986 7024
Passcode: 025918

Abstract : Ferromagnets have long been the foundation of spintronics applications, yet materials with compensated magnetic order, such as antiferromagnets, offer distinct advantages, including faster dynamics and a wider range of available materials. Altermagnets [1] are emerging as a class of materials that combine the advantages of ferromagnets and antiferromagnets, offering promising potential for spintronics applications [2]. Since their theoretical prediction, various experimental observations have already been reported [3]. In this talk, I will very briefly introduce spintronics with compensated magnets and the concept of altermagnetism and focus on some of the first experimental verifications of altermagnetic materials. I will present our magneto-transport studies in altermagnetic metals and semiconductors [4–6], and in the final part of the talk, I will discuss magnon-mediated spin transport in an altermagnetic insulator [7].

1. L. Smejkal et al., Phys. Rev. X 12, 040501 (2022)
2. T. Jungwirth et al., arXiv:2508.09748 (2025)
3. C. Song et al., Nat. Rev. Mater. 1–13 (2025)
4. R. D. Gonzalez Betancourt et al., Phys. Rev. Lett. 130, 036702 (2023)H. Reichlová et al., Nat. Commun. 15 (1), 4961 (2024)
5. A. Badura et al., Nat. Commun. 7111 (2025)
6. M. Leiviska et al., Phys. Rev. Mater. 9 (8), 084403 (2025)

Biography : Helena Reichlova is an experimental physicist specializing in magneto-thermal transport in compensated magnetic systems. She received her PhD in antiferromagnetic spintronics from Charles University in Prague in 2016, completing part of her doctoral research as a Fulbright Fellow at The Ohio State University. After her PhD, Helena joined the Technical University of Dresden, where she carried out research and teaching for nearly five years. In 2022, she was appointed an Eleonore Trefftz Guest Professor. During this period, her research focus expanded toward magneto-thermal transport and spin caloritronics. In autumn 2023, she established her own research group at the Institute of Physics of the Czech Academy of Sciences, supported jointly by the Max Planck Society and the Czech government. Throughout her career, Helena has received several distinctions, including the Czech Ministry of Education Award for the Best PhD Thesis, a Christiane Nüsslein-Volhard Fellowship, and recognition as an Outstanding Referee by the American Physical Society.