We report on measurements proving the polaronic effect in a 2D electron system prepared on helium films covering a quartz-glass substrate. In bulk systems the measured magnetoconductivity follows the extended self-consistent Born approximation (SCBA) theory up to 20 T. On films we achieved conditions at which the calculated binding energies where larger than k(B)T and the magnetoconductivity data could be interpreted by adding the collision frequency of the electron plus its associated dimple to the collision frequency caused by gas atom scattering.
2D polarons in high magnetic fields on the surface of liquid helium films
MISTURA, GIAMPAOLO;
1996
Abstract
We report on measurements proving the polaronic effect in a 2D electron system prepared on helium films covering a quartz-glass substrate. In bulk systems the measured magnetoconductivity follows the extended self-consistent Born approximation (SCBA) theory up to 20 T. On films we achieved conditions at which the calculated binding energies where larger than k(B)T and the magnetoconductivity data could be interpreted by adding the collision frequency of the electron plus its associated dimple to the collision frequency caused by gas atom scattering.File in questo prodotto:
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