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

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

מידע ביבליוגרפי
Parent link:Physical Review B
Vol. 98, iss. 7.— 2018.— [075111, 14 p.]
מחבר תאגידי: Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Отделение экспериментальной физики
מחברים אחרים: Silkin I. V. Igor Vyacheslavovich, Chernov I. P. Ivan Petrovich, Silkin V. M. Vyacheslav Mikhaylovich, Chulkov E. V. Evgeny Vladimirovich
סיכום: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
שפה:אנגלית
יצא לאור: 2018
נושאים:
электронный ресурс
труды учёных ТПУ
электронные возбуждения
переходные металлы
плазмоны
спектры возбуждения
наночастицы
поглощение
водород
גישה מקוונת:https://doi.org/10.1103/PhysRevB.98.075111
פורמט: MixedMaterials אלקטרוני Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664066

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