Low-energy dielectric screening in Pd and PdHx systems; Journal of Physics: Condensed Matter; Vol. 27, iss. 5
| Parent link: | Journal of Physics: Condensed Matter Vol. 27, iss. 5.— 2015.— [055501, 11 p.] |
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| Autor Corporativo: | |
| Outros Autores: | , , , , |
| Resumo: | Title screen Modifications in dielectric properties of palladium upon absorption of hydrogen are investigated theoretically in the low-energy (0-2 eV) region. The calculations were performed with full inclusion of the electronic band structure obtained within a self-consistent pseudopotential approach. In particular, we trace the evolution of the acoustic-like plasmon (AP) found previously in clean Pd with increasing hydrogen concentration. It exists in PdHx up to the hydrogen content x corresponding to the complete filling of the 4d Pd-derived energy bands because of the presence of two kinds of carriers at the Fermi surface. At higher H concentration the AP disappears since only one kind of carrier within the sp-like energy band exists at the Fermi level. Additionally, we investigate the spatial distribution inside the crystal of a potential caused by a time-dependent external perturbation and observe drastic modifications in the screening properties in the PdHx systems with energy and with hydrogen concentration. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | inglês |
| Publicado em: |
2015
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| Assuntos: | |
| Acesso em linha: | http://dx.doi.org/10.1088/0953-8984/27/5/055501 |
| Formato: | Recurso Electrónico Capítulo de Livro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667425 |
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| 200 | 1 | |a Low-energy dielectric screening in Pd and PdHx systems |f V. M. Silkin, I. P. Chernov, I. Yu. Sklyadneva [et al.] | |
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| 300 | |a Title screen | ||
| 330 | |a Modifications in dielectric properties of palladium upon absorption of hydrogen are investigated theoretically in the low-energy (0-2 eV) region. The calculations were performed with full inclusion of the electronic band structure obtained within a self-consistent pseudopotential approach. In particular, we trace the evolution of the acoustic-like plasmon (AP) found previously in clean Pd with increasing hydrogen concentration. It exists in PdHx up to the hydrogen content x corresponding to the complete filling of the 4d Pd-derived energy bands because of the presence of two kinds of carriers at the Fermi surface. At higher H concentration the AP disappears since only one kind of carrier within the sp-like energy band exists at the Fermi level. Additionally, we investigate the spatial distribution inside the crystal of a potential caused by a time-dependent external perturbation and observe drastic modifications in the screening properties in the PdHx systems with energy and with hydrogen concentration. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Journal of Physics: Condensed Matter | ||
| 463 | |t Vol. 27, iss. 5 |v [055501, 11 p.] |d 2015 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a экранирование | |
| 610 | 1 | |a диэлектрические свойства | |
| 610 | 1 | |a палладий | |
| 610 | 1 | |a низкие энергии | |
| 701 | 1 | |a Silkin |b V. M. |g Vyacheslav Mikhaylovich | |
| 701 | 1 | |a Chernov |b I. P. |c Doctor of Physical and Mathematical Sciences (DSc), Professor of the Department of General Physics of Tomsk Polytechnic University (TPU) |f 1935- |g Ivan Petrovich |3 (RuTPU)RU\TPU\pers\30202 |9 14596 | |
| 701 | 1 | |a Sklyadneva |b I. Yu. |g Irina Yuryevna | |
| 701 | 1 | |a Chulkov |b E. V. |g Evgeny Vladimirovich | |
| 701 | 1 | |a Nazarov |b V. U. |g Vladimir | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Физико-технический институт |b Кафедра общей физики |3 (RuTPU)RU\TPU\col\18734 |
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