Cyclotron resonance of a two-dimensional Wigner solid
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
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Cyclotron resonance of a two-dimensional Wigner solid
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| Creator |
Monarkha, Yu.P.
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| Subject |
Квантовые жидкости и квантовые кpисталлы
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| Description |
Cyclotron resonance absorption from a two-dimensional electron solid formed on a free surface of liquid helium is analyzed by means of the memory function formalism. The presence of the low-frequency phonon mode of the Wigner solid in a strong magnetic field is shown to broaden significantly the electron dynamical structure factor (DSF) as a function of frequency, strengthening the contribution from multi-phonon emission terms of the high-frequency mode. Thus in most cases the linewidth is formed by nonlinear terms of the DSF expansion in the cyclotron motion factor exp (-iwct) rather than by the linear terms analyzed previously. The inclusion of all these multi-phonon terms changes the sign of the many-electron effect and agrees well with available experimental data, eliminating the discrepancy between theory and experiment. Cyclotron resonance absorption from a two-dimensional electron solid formed on a free surface of liquid helium is analyzed by means of the memory function formalism. The presence of the low-frequency phonon mode of the Wigner solid in a strong magnetic field is shown to broaden significantly the electron dynamical structure factor (DSF) as a function of frequency, strengthening the contribution from multiphonon emission terms of the high-frequency mode. Thus in most cases the linewidth is formed by nonlinear terms of the DSF expansion in the cyclotron motion factor exp(−iωct) rather than by the linear terms analyzed previously. The inclusion of all these multiphonon terms changes the sign of the many-electron effect and agrees well with available experimental data, eliminating the discrepancy between theory and experiment. |
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| Date |
2018-01-13T13:36:38Z
2018-01-13T13:36:38Z 2001 |
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| Type |
Article
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| Identifier |
Cyclotron resonance of a two-dimensional Wigner solid
Cyclotron resonance of a two-dimensional Wigner solid / Yu.P. Monarkha // Физика низких температур. — 2001. — Т. 27, № 6. — С. 627-633. — Бібліогр.: 19 назв. — англ.
0132-6414 PACS: 73.20.Dx, 73.25.+i, 76.40.+b http://dspace.nbuv.gov.ua/handle/123456789/128678 |
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| Language |
en
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Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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