A Large Conductivity Change in 2DES on Liquid 4He Under CR Conditions

摘要: We present the first magneto-conductivity measurements on a two-dimensional electron system liquid4He under cyclotron resonance conditions. The are performed in temperature region above 1K, where scattering with helium-gas atoms is dominant mechanism. observe large change magnetoconductivity at resonant magnetic field. When increasing power of radiation, we subsequently decrease and an increase normalised inverse conductivity \(\frac{{\sigma _0 }}{{\sigma _{x{\kern 1pt} x} }}\) think this dependence can be understood terms hot effects.