Berruto, G.Madan, I.Murooka, Y.Vanacore, G. M.Pomarico, E.Rajeswari, J.Lamb, R.Huang, P.Kruchkov, A. J.Togawa, Y.LaGrange, T.McGrouther, D.Rønnow, H. M.Carbone, F.2018-04-232018-04-232018-04-23201810.1103/PhysRevLett.120.117201https://infoscience.epfl.ch/handle/20.500.14299/146134We demonstrate that light-induced heat pulses of different duration and energy can write Skyrmions in a broad range of temperatures and magnetic field in FeGe. Using a combination of camera-rate and pump- probe cryo-Lorentz transmission electron microscopy, we directly resolve the spatiotemporal evolution of the magnetization ensuing optical excitation. The Skyrmion lattice was found to maintain its structural properties during the laser-induced demagnetization, and its recovery to the initial state happened in the sub-μs to μs range, depending on the cooling rate of the system.text::journal::journal article::research article