Helium-film-induced retrapping transition in the two-dimensional electron system above an uneven solid-hydrogen surface

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123neu_physrevB_1993.pdf
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1993
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Monarkha, Yuri P.
Albrecht, Uwe
Kono, Kimitoshi
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Physical Review B. 1993, 47(20), pp. 13812-13817. Available under: doi: 10.1103/PhysRevB.47.13812
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A detailed theoretical analysis of the conductivity of surface electrons above a thin liquid-helium film covering an uneven solid-hydrogen surface is presented. The pronounced conductivity anomaly which is observed during the growth of the helium film is shown to originate from a strong coupling of the electrons to the roughness of the underlying hydrogen substrate. The observed conductivity anomalies (dip and peak) can be explained quantitatively by a retrapping structural transition within the disordered system of localized charges. We have measured the effects of varying electron density and discuss the influence of electronic correlation on the conductivity.

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ISO 690MONARKHA, Yuri P., Uwe ALBRECHT, Kimitoshi KONO, Paul LEIDERER, 1993. Helium-film-induced retrapping transition in the two-dimensional electron system above an uneven solid-hydrogen surface. In: Physical Review B. 1993, 47(20), pp. 13812-13817. Available under: doi: 10.1103/PhysRevB.47.13812
BibTex
@article{Monarkha1993Heliu-5197,
  year={1993},
  doi={10.1103/PhysRevB.47.13812},
  title={Helium-film-induced retrapping transition in the two-dimensional electron system above an uneven solid-hydrogen surface},
  number={20},
  volume={47},
  journal={Physical Review B},
  pages={13812--13817},
  author={Monarkha, Yuri P. and Albrecht, Uwe and Kono, Kimitoshi and Leiderer, Paul}
}
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