Related Experiment Video
Updated: Aug 15, 2026

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
Published on: January 19, 2018
Femtosecond electron and spin dynamics in Gd(0001) studied by time-resolved photoemission and magneto-optics
M Lisowski1, P A Loukakos, A Melnikov
1Freie Universität Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin-Dahlem, Germany.
Abstract:
Femtosecond electron and spin dynamics of the Gd(0001) surface are investigated by time-resolved photoemission and second harmonic generation. Upon optical excitation the spin polarization of the surface state is reduced by half while its exchange splitting remains nearly unchanged. Electron-magnon interaction is proposed to facilitate electron-spin-flip scattering among spin-mixed surface and bulk states, which provides a mechanism for ultrafast demagnetization.
Related Concept Videos
Electron Microscope Tomography and Single-particle Reconstruction
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
NMR Spectroscopy: Spin–Spin Coupling
UV–Vis Spectroscopy: Molecular Electronic Transitions

