Cyclotron resonance for two-dimensional electrons on thin helium films | Zendy

J. Klier | Zendy; A. Würl | Zendy; P. Leǐderer | Zendy; Giampaolo Mistura | Zendy; V. B. Shikin | Zendy

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Cyclotron resonance for two-dimensional electrons on thin helium films

Author(s) -

J. Klier,

A. Würl,

P. Leǐderer,

Giampaolo Mistura,

V. B. Shikin

Publication year - 2002

Publication title -

physical review. b, condensed matter

Language(s) - English

Resource type - Journals

eISSN - 1095-3795

pISSN - 0163-1829

DOI - 10.1103/physrevb.65.165428

Subject(s) - electron cyclotron resonance , electron , helium , microwave , cyclotron resonance , atomic physics , materials science , cyclotron , absorption (acoustics) , resonance (particle physics) , thin film , physics , ion cyclotron resonance , condensed matter physics , optics , nuclear physics , nanotechnology , quantum mechanics

We present a systematic investigation of the microwave absorption for two-dimensional electron layers on thin helium films and in the presence of a cyclotron resonance (CR) magnetic field. To explain the measured data, a recently proposed two-fraction structure of the electron system is used and here described in detail. Hereby the problem of substrate roughness, usually always present for electrons on thin helium films, is taken into account and it turns out to be an important parameter. Within this model the general structure of the microwave absorption becomes understandable and the fraction of localized and free electrons can be precisely determined. The details of the observed asymmetry and shift of the CR line shape are discussed

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