Oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface
We measured the resonance spectra of edge magnetoplasmon (EMP) oscillations in a two-dimensional (2D) electron system located on a liquid-helium surface below 1.1 K. Systematic measurements of the resonance fre-quency and the damping rate as a function of the lateral confinement electric field stren...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2013 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2013
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface / Shuji Yamanaka, Toshikazu Arai, Anju Sawada, Akira Fukuda, Hideki Yayama // Физика низких температур. — 2013. — Т. 39, № 10. — С. 1086–1095. — Бібліогр.: 33 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862573780000309248 |
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| author | Yamanaka, Shuji Arai, Toshikazu Sawada, Anju Fukuda, Akira Yayama, Hideki |
| author_facet | Yamanaka, Shuji Arai, Toshikazu Sawada, Anju Fukuda, Akira Yayama, Hideki |
| citation_txt | Oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface / Shuji Yamanaka, Toshikazu Arai, Anju Sawada, Akira Fukuda, Hideki Yayama // Физика низких температур. — 2013. — Т. 39, № 10. — С. 1086–1095. — Бібліогр.: 33 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | We measured the resonance spectra of edge magnetoplasmon (EMP) oscillations in a two-dimensional (2D) electron system located on a liquid-helium surface below 1.1 K. Systematic measurements of the resonance fre-quency and the damping rate as a function of the lateral confinement electric field strength shows clear evidence of the oscillation mode transformation. A pronounced change corresponding to the mode transformation was ob-served in the damping rate. When 2D electrons are confined in a strong lateral electric field, the damping is weak. As the lateral confinement electric field is reduced below a certain threshold value, an abrupt enhancement of the damping rate is observed. We hypothesize that the weak damping mode in the strong lateral confinement electric field is the compressive density oscillation of the electrons near the edge (conventional EMP) and the strong damping mode in the weak confinement field is the coupled mode of conventional EMP and the boundary displacement wave (BDW). The observation of the strong damping in the BDW–EMP coupled mode is a manifestation of the nearly incompressible feature of strongly interacting classical electrons, which agrees with earlier theoretical predictions.
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| first_indexed | 2025-11-26T08:16:39Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-118812 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-26T08:16:39Z |
| publishDate | 2013 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
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| spelling | Yamanaka, Shuji Arai, Toshikazu Sawada, Anju Fukuda, Akira Yayama, Hideki 2017-05-31T09:57:52Z 2017-05-31T09:57:52Z 2013 Oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface / Shuji Yamanaka, Toshikazu Arai, Anju Sawada, Akira Fukuda, Hideki Yayama // Физика низких температур. — 2013. — Т. 39, № 10. — С. 1086–1095. — Бібліогр.: 33 назв. — англ. 0132-6414 PACS: 73.20.–r, 73.20.Mf https://nasplib.isofts.kiev.ua/handle/123456789/118812 We measured the resonance spectra of edge magnetoplasmon (EMP) oscillations in a two-dimensional (2D) electron system located on a liquid-helium surface below 1.1 K. Systematic measurements of the resonance fre-quency and the damping rate as a function of the lateral confinement electric field strength shows clear evidence of the oscillation mode transformation. A pronounced change corresponding to the mode transformation was ob-served in the damping rate. When 2D electrons are confined in a strong lateral electric field, the damping is weak. As the lateral confinement electric field is reduced below a certain threshold value, an abrupt enhancement of the damping rate is observed. We hypothesize that the weak damping mode in the strong lateral confinement electric field is the compressive density oscillation of the electrons near the edge (conventional EMP) and the strong damping mode in the weak confinement field is the coupled mode of conventional EMP and the boundary displacement wave (BDW). The observation of the strong damping in the BDW–EMP coupled mode is a manifestation of the nearly incompressible feature of strongly interacting classical electrons, which agrees with earlier theoretical predictions. We would like to thank K. Kono for his attention to our work and for helpful discussions. We would like to express our gratitude to R. Nishinakagawa and S. Isoyama for their assistance with our experiments. This work was supported by a Grant-in-Aid for Challenging Exploratory Research from the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan (Research No. 16654058) and by a Grant-in-Aid for Scientific Research (B) from Japan Society for the Promotion of Science (JSPS) (Nos. 16340108, 19540337, and 21540319). en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Электроны и ионы над/в сверхтекучем гелии Oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface Article published earlier |
| spellingShingle | Oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface Yamanaka, Shuji Arai, Toshikazu Sawada, Anju Fukuda, Akira Yayama, Hideki Электроны и ионы над/в сверхтекучем гелии |
| title | Oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface |
| title_full | Oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface |
| title_fullStr | Oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface |
| title_full_unstemmed | Oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface |
| title_short | Oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface |
| title_sort | oscillation mode transformation of edge magnetoplasmons in two-dimensional electron system on liquid-helium surface |
| topic | Электроны и ионы над/в сверхтекучем гелии |
| topic_facet | Электроны и ионы над/в сверхтекучем гелии |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/118812 |
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