Collective electronic excitations in Ti and Zr and their dihydrides; Physical Review B; Vol. 98, iss. 7

書誌詳細
Parent link:Physical Review B
Vol. 98, iss. 7.— 2018.— [075111, 14 p.]
団体著者: Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Отделение экспериментальной физики
その他の著者: Silkin I. V. Igor Vyacheslavovich, Chernov I. P. Ivan Petrovich, Silkin V. M. Vyacheslav Mikhaylovich, Chulkov E. V. Evgeny Vladimirovich
要約:Title screen
Electron excitation spectra in Ti and Zr transition metals are calculated in the framework of time-dependent density functional theory. Several peaks found in the obtained loss functions are interpreted as collective excitations. The energy positions of the dominating bulk plasmons are in close agreement with the energy loss experiments. We investigated how the absorption of hydrogen modifies the dielectric properties of these materials. It is shown that the main plasmon energy blueshifts in a such process, again in agreement with experimental observations. On base of the calculated bulk dielectric functions of all these systems, we performed analysis of the excitation spectra at surfaces and nanoparticles. Several plasmon peaks in these systems with rather short lifetimes are found at reduced energies. It is shown how the nanoparticle excitation spectra are modified in the ultraviolet-frequency range upon hydrogen absorption.
Режим доступа: по договору с организацией-держателем ресурса
言語:英語
出版事項: 2018
主題:
オンライン・アクセス:https://doi.org/10.1103/PhysRevB.98.075111
フォーマット: 電子媒体 図書の章
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664066

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