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Ultrafast demagnetization in bulk nickel induced by X-ray photons tuned to Ni M3 and L3 absorption edges.
- Source :
- Scientific Reports; 1/3/2024, Vol. 13 Issue 1, p1-8, 8p
- Publication Year :
- 2024
-
Abstract
- Studies of light-induced demagnetization started with the experiment performed by Beaupaire et al. on Ni. Here, we present theoretical predictions for X-ray induced demagnetization of nickel, with X-ray photon energies tuned to its M 3 and L 3 absorption edges. We show that the specific feature in the density of states in the d-band of Ni, i.e., a sharp peak located just above the Fermi level, strongly influences the change of the predicted magnetic signal, making it stronger than in the previously studied case of X-ray demagnetized cobalt. It impacts also the value of Curie temperature for Ni. We believe that this finding will inspire dedicated experiments investigating magnetic processes in X-ray irradiated nickel and cobalt. [ABSTRACT FROM AUTHOR]
- Subjects :
- DEMAGNETIZATION
X-ray absorption
X-rays
NICKEL
PHOTONS
FERMI level
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Volume :
- 13
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Scientific Reports
- Publication Type :
- Academic Journal
- Accession number :
- 174579571
- Full Text :
- https://doi.org/10.1038/s41598-023-50467-9