Photoresonance and conductivity of surface electrons on liquid 3He

Электроны над жидким гелием

Автор(и)

  • Denis Konstantinov Low Temperature Physics Laboratory, RIKEN, Hirosawa 2-1, Wako 351-0198, Japan
  • Yuriy Monarkha Low Temperature Physics Laboratory, RIKEN, Hirosawa 2-1, Wako 351-0198, Japan
  • Kimitoshi Kono Low Temperature Physics Laboratory, RIKEN, Hirosawa 2-1, Wako 351-0198, Japan

DOI:

https://doi.org/10.1063/1.2911657

Ключові слова:

liquid helium, surface electrons, microwave, resonance, conductivity.

Анотація

Resonance variations of the in-plane conductivity of surface electrons (SEs) over liquid 3He induced by microwave (MW) radiation of a fixed frequency are experimentally and theoretically studied for low temperature scattering regimes (T < 0.5 K). The system was tuned to resonance by varying the amplitude of the vertical electric field which shifts the positions of SE Rydberg levels. The line-shape change and reversing of the sign of the effect are found to be opposite to that reported previously for weak vertical electric fields. A theoretical analysis of conductivity of the SE system heated due to decay of electrons excited to the second Rydberg level by the MW explains well the line-shape variations observed. It shows also that shifting the MW resonance into the range of weak vertical fields leads to important qualitative changes in the line-shape of SE conductivity which are in agreement with observations reported previously.

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Опубліковано

2008-03-17

Як цитувати

(1)
Konstantinov, D.; Monarkha, Y.; Kono, K. Photoresonance and Conductivity of Surface Electrons on Liquid 3He: Электроны над жидким гелием. Fiz. Nizk. Temp. 2008, 34, 470-479.

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