Academic Journal
Acoustic plasmons in nickel and its modification upon hydrogen uptake
| العنوان: | Acoustic plasmons in nickel and its modification upon hydrogen uptake |
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| المؤلفون: | Koroteev, Yuri M., Silkin, Igor V., Chernov, I. P., Chulkov, Eugene V., Silkin, Viatcheslav M. |
| المساهمون: | Ministry of Education and Science of the Russian Federation, Saint Petersburg State University, Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España) |
| بيانات النشر: | Multidisciplinary Digital Publishing Institute |
| سنة النشر: | 2023 |
| المجموعة: | Digital.CSIC (Consejo Superior de Investigaciones Científicas / Spanish National Research Council) |
| مصطلحات موضوعية: | Nickel, Plasmons, Hydrides, Electronic excitations |
| الوصف: | This article belongs to the Special Issue Photoemission and Excitation Properties of Nanomaterials by Computational Methods. ; In this work, we study, in the framework of the ab initio linear-response time-dependent density functional theory, the low-energy collective electronic excitations with characteristic sound-like dispersion, called acoustic plasmons, in bulk ferromagnetic nickel. Since the respective spatial oscillations in slow and fast charge systems involve states with different spins, excitation of such plasmons in nickel should result in the spatial variations in the spin structure as well. We extend our study to NiH𝑥 with different hydrogen concentrations x. We vary the hydrogen concentration and trace variations in the acoustic plasmons properties. Finally, at 𝑥=1 the acoustic modes disappear in paramagnetic NiH. The explanation of such evolution is based on the changes in the population of different energy bands with hydrogen content variation. ; Y.M.K. acknowledges support from the Government research assignment for ISPMS SB RAS, project FWRW-2022-0001 (in the part of band structure calculations). I.V.S. acknowledges support from the Ministry of Education and Science of the Russian Federation within State Task No. FSWM-2020-0033 (in the part of electronic structure and dielectric function calculations). E.V.C. acknowledges support from Saint Petersburg State University (Project ID No. 90383050). V.M.S. acknowledges financial support by Grant No. PID2019-105488GB-I00 funded by MCIN/AEI/10.13039/501100011033/. ; Peer reviewed |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2079-4991 |
| Relation: | #PLACEHOLDER_PARENT_METADATA_VALUE#; info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-105488GB-I00/ES/EXCITACIONES ELECTRONICAS Y DINAMICA EN SUPERFICIES Y NANOESTRUCTURAS/; Publisher's version; https://doi.org/10.3390/nano13010141; Sí; Nanomaterials 13(1): 141 (2023); http://hdl.handle.net/10261/342117 |
| DOI: | 10.3390/nano13010141 |
| الاتاحة: | http://hdl.handle.net/10261/342117 https://doi.org/10.3390/nano13010141 |
| Rights: | open |
| رقم الانضمام: | edsbas.8CD86EEE |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 20794991 |
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| DOI: | 10.3390/nano13010141 |