Effect of surface magnetism on the x-ray spectra of hollow atoms
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arXiv
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| Format: | Preprint |
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2025
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| author | Dergham, P. Prigent, C. Brassart, Ch. V. Ahmad A. Duval, L. Lamour, E. Macé, S. Steydli, S. Tosi, E. M. Vernhet, D. Trassinelli, M. |
| author_facet | Dergham, P. Prigent, C. Brassart, Ch. V. Ahmad A. Duval, L. Lamour, E. Macé, S. Steydli, S. Tosi, E. M. Vernhet, D. Trassinelli, M. |
| contents | We present evidence that the detection of surface magnetism without the application of an external magnetic field is possible by studying the x-ray emission of highly charged ions interacting at grazing incidence with the sample. Measuring the 3 keV $n=2 \to 1$ transition in the interaction of Ar\textsuperscript{17+} with a nickel sample at various temperatures gives access to the $n=2$ ion population. The latter evolves from a half-filled to a full shell during the ferro-paramagnetic phase transition of the sample, with the ferromagnetic phase reflecting the filling blocking due to Pauli principle. This finding puts an end to a longstanding controversy arising from contradictory studies of ion--surface interaction using Auger spectroscopy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_15003 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Effect of surface magnetism on the x-ray spectra of hollow atoms Dergham, P. Prigent, C. Brassart, Ch. V. Ahmad A. Duval, L. Lamour, E. Macé, S. Steydli, S. Tosi, E. M. Vernhet, D. Trassinelli, M. Atomic Physics We present evidence that the detection of surface magnetism without the application of an external magnetic field is possible by studying the x-ray emission of highly charged ions interacting at grazing incidence with the sample. Measuring the 3 keV $n=2 \to 1$ transition in the interaction of Ar\textsuperscript{17+} with a nickel sample at various temperatures gives access to the $n=2$ ion population. The latter evolves from a half-filled to a full shell during the ferro-paramagnetic phase transition of the sample, with the ferromagnetic phase reflecting the filling blocking due to Pauli principle. This finding puts an end to a longstanding controversy arising from contradictory studies of ion--surface interaction using Auger spectroscopy. |
| title | Effect of surface magnetism on the x-ray spectra of hollow atoms |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2506.15003 |