Cyclotron resonance of a two-dimensional Wigner solid

Автор(и)

  • Yu. P. Monarkha B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., 61103 Kharkov, Ukraine

DOI:

https://doi.org/10.1063/1.1382984

Ключові слова:

PACS: 73.20.Dx, 73.25. i, 76.40. b

Анотація

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.

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Опубліковано

2001-06-10

Як цитувати

(1)
Monarkha, Y. P. Cyclotron Resonance of a Two-Dimensional Wigner Solid. Fiz. Nizk. Temp. 2001, 27, 627-633.

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