Prior studies have pointed to the role of spin-polarized hot electrons in ultrafast demagnetization. Here, by combining time and element resolved X-ray magnetic circular dichroism with theoretical calculations, Gupta et al quantitatively resolve both the effect of spin polarization and the current densities in ultrashort hot electron pulses.
- Deeksha Gupta
- Maryna Pankratova
- Christine Boeglin
