Ultrafast demagnetization in bulk nickel induced by X-ray photons tuned to Ni $M_{3}$ and $L_3$ absorption edges
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arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866916102488981504 |
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| author | Kapcia, Konrad J. Tkachenko, Victor Capotondi, Flavio Lichtenstein, Alexander Molodtsov, Serguei Piekarz, Przemysław Ziaja, Beata |
| author_facet | Kapcia, Konrad J. Tkachenko, Victor Capotondi, Flavio Lichtenstein, Alexander Molodtsov, Serguei Piekarz, Przemysław Ziaja, Beata |
| contents | Studies of light-induced demagnetization started with the experiment performed by Beaupaire et al. on nickel. 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 of the d-band of Ni, 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 cobalt. We believe that this finding will inspire future experiments on magnetic processes in X-ray irradiated nickel. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_04671 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Ultrafast demagnetization in bulk nickel induced by X-ray photons tuned to Ni $M_{3}$ and $L_3$ absorption edges Kapcia, Konrad J. Tkachenko, Victor Capotondi, Flavio Lichtenstein, Alexander Molodtsov, Serguei Piekarz, Przemysław Ziaja, Beata Materials Science Other Condensed Matter Atomic Physics Computational Physics Optics Studies of light-induced demagnetization started with the experiment performed by Beaupaire et al. on nickel. 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 of the d-band of Ni, 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 cobalt. We believe that this finding will inspire future experiments on magnetic processes in X-ray irradiated nickel. |
| title | Ultrafast demagnetization in bulk nickel induced by X-ray photons tuned to Ni $M_{3}$ and $L_3$ absorption edges |
| topic | Materials Science Other Condensed Matter Atomic Physics Computational Physics Optics |
| url | https://arxiv.org/abs/2307.04671 |