Helicons and magnetoimpurity waves in layered conductors
It is shown that local electron states, caused by impurities in a layered conductor placed in an external magnetic field, give rise to resonant corrections Δσαβ(ω) to the high-frequency conductivity tensor Δσαβ(ω) of the layers. These corrections appear due to the resonant transitions of electrons b...
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| Дата: | 1999 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
1999
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| Назва видання: | Физика низких температур |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/137866 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Helicons and magnetoimpurity waves in layered conductors / V.M. Gvozdikov, A.M. Ermolaev, R. Vega-Monroy // Физика низких температур. — 1999. — Т. 25, № 7. — С. 718-724. — Бібліогр.: 25 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1378662018-06-18T03:09:21Z Helicons and magnetoimpurity waves in layered conductors Gvozdikov, V.M. Ermolaev, A.M. Vega-Monroy, R. Низкоразмерные и неупорядоченные системы It is shown that local electron states, caused by impurities in a layered conductor placed in an external magnetic field, give rise to resonant corrections Δσαβ(ω) to the high-frequency conductivity tensor Δσαβ(ω) of the layers. These corrections appear due to the resonant transitions of electrons between the Landau levels and the local states and change dramatically the spectrum of collective electromagnetic oscillations in the system because of the "branch crossing" nearby the frequency ω₀(ħω₀ is the local state energy). As a result, a new magnetoimpurity wave, ω₋k, appears in the spectrum in addition to the helicon mode,ω₊k, which is known to exist in a pure layered conductor in a perpendicular magnetic field (k is the wave vector along the magnetic field). In the long wavelength limit, kα<<1 the helicon-like mode w₊k has a gap of the order of w₀ , whereas the magnetoimpurity mode in this limit goes to zero w₋k~(kα)² (a is the distance between adjacent layers). The small damping of these modes due to the broadening of the Landau levels and the magnetoimpurity levels are also calculated. 1999 Article Helicons and magnetoimpurity waves in layered conductors / V.M. Gvozdikov, A.M. Ermolaev, R. Vega-Monroy // Физика низких температур. — 1999. — Т. 25, № 7. — С. 718-724. — Бібліогр.: 25 назв. — англ. 0132-6414 http://dspace.nbuv.gov.ua/handle/123456789/137866 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Низкоразмерные и неупорядоченные системы Низкоразмерные и неупорядоченные системы |
| spellingShingle |
Низкоразмерные и неупорядоченные системы Низкоразмерные и неупорядоченные системы Gvozdikov, V.M. Ermolaev, A.M. Vega-Monroy, R. Helicons and magnetoimpurity waves in layered conductors Физика низких температур |
| description |
It is shown that local electron states, caused by impurities in a layered conductor placed in an external magnetic field, give rise to resonant corrections Δσαβ(ω) to the high-frequency conductivity tensor Δσαβ(ω) of the layers. These corrections appear due to the resonant transitions of electrons between the Landau levels and the local states and change dramatically the spectrum of collective electromagnetic oscillations in the system because of the "branch crossing" nearby the frequency ω₀(ħω₀ is the local state energy). As a result, a new magnetoimpurity wave, ω₋k, appears in the spectrum in addition to the helicon mode,ω₊k, which is known to exist in a pure layered conductor in a perpendicular magnetic field (k is the wave vector along the magnetic field). In the long wavelength limit, kα<<1 the helicon-like mode w₊k has a gap of the order of w₀ , whereas the magnetoimpurity mode in this limit goes to zero w₋k~(kα)² (a is the distance between adjacent layers). The small damping of these modes due to the broadening of the Landau levels and the magnetoimpurity levels are also calculated. |
| format |
Article |
| author |
Gvozdikov, V.M. Ermolaev, A.M. Vega-Monroy, R. |
| author_facet |
Gvozdikov, V.M. Ermolaev, A.M. Vega-Monroy, R. |
| author_sort |
Gvozdikov, V.M. |
| title |
Helicons and magnetoimpurity waves in layered conductors |
| title_short |
Helicons and magnetoimpurity waves in layered conductors |
| title_full |
Helicons and magnetoimpurity waves in layered conductors |
| title_fullStr |
Helicons and magnetoimpurity waves in layered conductors |
| title_full_unstemmed |
Helicons and magnetoimpurity waves in layered conductors |
| title_sort |
helicons and magnetoimpurity waves in layered conductors |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
1999 |
| topic_facet |
Низкоразмерные и неупорядоченные системы |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/137866 |
| citation_txt |
Helicons and magnetoimpurity waves in layered conductors / V.M. Gvozdikov, A.M. Ermolaev, R. Vega-Monroy // Физика низких температур. — 1999. — Т. 25, № 7. — С. 718-724. — Бібліогр.: 25 назв. — англ. |
| series |
Физика низких температур |
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AT gvozdikovvm heliconsandmagnetoimpuritywavesinlayeredconductors AT ermolaevam heliconsandmagnetoimpuritywavesinlayeredconductors AT vegamonroyr heliconsandmagnetoimpuritywavesinlayeredconductors |
| first_indexed |
2023-10-18T21:15:47Z |
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2023-10-18T21:15:47Z |
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