Applied Sciences | |
Investigating Coherent Magnetization Control with Ultrashort THz Pulses | |
Ekaterina Zapolnova1  Nikola Stojanovic1  Torsten Golz1  Rui Pan1  Grégory Malinowski2  Gheorghe Sorin Chiuzbaian3  Emmanuelle Jal3  Boris Vodungbo3  Xuan Liu3  Romain Jarrier3  Renaud Delaunay3  Jan Lüning3  | |
[1] Deutsches Elektronen-Synchrotron, 22607 Hamburg, Germany;Institut Jean Lamour (UMR 7198), Université de Lorraine, Centre National de la Recherche Scientifique (CNRS), 54011 Nancy, France;Laboratoire de Chimie Physique-Matière et Rayonnement (LPCMR), Sorbonne Université, Centre National de la Recherche Scientifique (CNRS), 75252 Paris, France; | |
关键词: X-ray free electrons laser; ultrafast demagnetization; terahertz radiations; | |
DOI : 10.3390/app12031323 | |
来源: DOAJ |
【 摘 要 】
Coherent terahertz control of magnetization dynamics is an area of current interest due to its great potential for the realization of magnetization control on ultrafast timescales in commercial devices. Here we report on an experiment realized at the THz beamline of the free electron laser FLASH at DESY which offers a tunable terahertz radiation source and spontaneously synchronized free-electron laser X-ray pulses to resonantly probe the magnetization state of a ferromagnetic film. In this proof-of-principle experiment, we have excited a thin Permalloy film at different THz wavelengths and recorded the induced magnetization dynamics with photons resonantly tuned to the Ni
【 授权许可】
Unknown