Cyclotron resonance of correlated electrons in semiconductor heterostructures

Details Cyclotron resonance of correlated electrons in semiconductor heterostructures Cyclotron resonance of correlated electrons in semiconductor heterostructures

2003-11-06

arxiv.org/abs/cond-mat/0311134v1

J. Phys. Soc. Jpn Vol. 72 (2003) pp. 1779-1783

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 5 figures

Scientific paper

10.1143/JPSJ.72.1779

The cyclotron resonance absorption of two-dimensional electrons in semiconductor heterostructures in high magnetic fields is investigated. It is assumed that the ionized impurity potential is a dominant scattering mechanism, and the theory explicitly takes the Coulomb correlation effect into account through the Wigner phonons. The cyclotron resonance linewidth is in quantitative agreement with the experiment in the Wigner crystal regime at T=4.2K. Similar to the cyclotron resonance theory of the charge density waves pinned by short-range impurities, the present results for the long-range scattering also show the doubling of the resonance peaks. However, unlike the case of the charge density waves, our theory gives the pinning mode independent of the bulk compressibility of the substrate materials.

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