Academic Journal
Modeling of ultrafast X-ray induced magnetization dynamics in magnetic multilayer systems
| العنوان: | Modeling of ultrafast X-ray induced magnetization dynamics in magnetic multilayer systems |
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| المؤلفون: | K. J. Kapcia, V. Tkachenko, F. Capotondi, A. Lichtenstein, S. Molodtsov, L. Müller, A. Philippi-Kobs, P. Piekarz, B. Ziaja |
| المصدر: | npj Computational Materials, Vol 8, Iss 1, Pp 1-9 (2022) |
| بيانات النشر: | Nature Portfolio |
| سنة النشر: | 2022 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Materials of engineering and construction. Mechanics of materials, TA401-492, Computer software, QA76.75-76.765 |
| الوصف: | In this work, we report on modeling results obtained with our recently developed simulation tool enabling nanoscopic description of electronic processes in X-ray irradiated ferromagnetic materials. With this tool, we have studied the response of Co/Pt multilayer system irradiated by an ultrafast extreme ultraviolet pulse at the M-edge of Co (photon energy ~60 eV). It was previously investigated experimentally at the FERMI free-electron-laser facility, using the magnetic small-angle X-ray scattering technique. Our simulations show that the magnetic scattering signal from cobalt decreases on femtosecond timescales due to electronic excitation, relaxation, and transport processes both in the cobalt and in the platinum layers, following the trend observed in the experimental data. The confirmation of the predominant role of electronic processes for X-ray induced demagnetization in the regime below the structural damage threshold is a step toward quantitative control and manipulation of X-ray induced magnetic processes on femtosecond timescales. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2057-3960 |
| Relation: | https://doi.org/10.1038/s41524-022-00895-4; https://doaj.org/toc/2057-3960; https://doaj.org/article/41476a1d9aba4afbaf381a7e2bfb153b |
| DOI: | 10.1038/s41524-022-00895-4 |
| الاتاحة: | https://doi.org/10.1038/s41524-022-00895-4 https://doaj.org/article/41476a1d9aba4afbaf381a7e2bfb153b |
| رقم الانضمام: | edsbas.3AC510F7 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 20573960 |
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| DOI: | 10.1038/s41524-022-00895-4 |