Light- and magnetically actuated FePt microswimmers Vincent Mauricio Kadiri, Jan-Philipp Günther, Sai Nikhilesh Kottapalli, Rahul Goyal, Florian Peter, Mariana Alarcón-Correa, Kwanghyo Son, Hannah-Noa Barad, Michael Börsch and Peer Fischer Eur. Phys. J. E, 44 6 (2021) 74 Published online: 02 June 2021 DOI: 10.1140/epje/s10189-021-00074-1