Abstract
Behaviour of the linear magneto-resistivity σ −1xx of the surface-state electrons (SSE) exposed to the microwave radiation is studied in a wide temperature range which covers both vapor-atom and ripplon scattering regimes. The microwaves induce the resonance transitions of SSE between two lowest Rydberg states, and σ −1xx is observed to vary in the vicinity of the resonance. In the vapor-atom scattering regime (T≳0.5 K), magneto-resistivity decreases at the resonance, while in ripplon scattering regime (T≲0.3 K) it rapidly increases with the microwave power in the given range of the pressing electric field. The observed variation of σ −1xx , which under the conditions of our experiment is inversely proportional to the scattering rate, is attributed to the strong heating of SSE. The heating results in the increase of electron temperature well above ambient temperature and in significant thermal population of higher excited states. The theoretical predictions are found to be in good agreement with our experimental results in the whole temperature range.
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18 February 2022
A Correction to this paper has been published: https://doi.org/10.1007/s10909-022-02688-x
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Konstantinov, D., Monarkha, Y. & Kono, K. Microwave-Resonance Induced Change in Magneto-Resistivity: Hot Surface Electrons on Liquid 3He. J Low Temp Phys 150, 230–235 (2008). https://doi.org/10.1007/s10909-007-9539-y
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DOI: https://doi.org/10.1007/s10909-007-9539-y