Magnetoresistance of a two-dimensional electron layer over liquid helium at temperatures below 1 K
V. N. Grigor’evPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovO. I. KirichekPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovYu. Z. KovdryaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovS. S. SokolovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov
ABI
Аннотация
The longitudinal magnetoresistance ρxx of the surface electron (SE) layer over liquid helium is measured in magnetic fields up to 6 kOe at temperatures T up to 0.4 K. It is shown that the dependence ρxx(T) in a constant magnetic field is in the form of a curve with a maximum and a minimum. Such a behavior of ρxx is in agreement with the theoretical concepts developed by Yu. P. Monarkha [Fiz. Nizk. Temp. 17, 146 (1991)] and is attributed to the quantum nature of charge movement in the liquid–vapor interface under conditions of competition of gas and rippion mechanisms of SE scattering.
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