Speaker
Hugo Dil
(EPFL)
Description
Magnetic switching by light remains little understood even after decades of study. Here we present a previously unexplored switching mechanism using X-rays on multiferroic (Ge,Mn)Te. It will be shown that the ferrimagnetic system can be reliably switched using stochastic resonance in XMCD and that the switching mechanism can be stopped by changing one of the two input frequencies. The observed collective switching indicates a spin-glass behaviour, which is supported by muSR results and further experimental and theoretical characterisation. The possibility to change the resonance conditions will allow to investigate the ultrafast magnetic switching and out of equilibrium magnetic order.
Author
Hugo Dil
(EPFL)
Co-authors
Dr
Zaher Salman
(PSI)
Dr
Sunil Wilfred
(New Technologies-Research Center, University of West Bohemia)
Dr
Cinthia Piamonteze
(PSI)
Prof.
Jan Minar
(New Technologies-Research Center, University of West Bohemia)
Prof.
Gunther Springholz
(Johannes Kepler Universität)
Dr
Juraj Krempasky
(PSI)
