Abstract
A new class of single-particle excitations in tunnel-coupled electron bilayers is investigated by inelastic light scattering. The dispersion law and the dependence of the energies of these excitations on the degree of unbalance between the layers have been measured. A new spectroscopic method is proposed for determining the degree of unbalance between bilayers.
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References
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Collective excitations dominate in the region Δ<1 MeV in the spectrum. Experimental data and theoretical consideration of these excitations will be presented in the further publications.
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Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 78, No. 10, 2003, pp. 1151–1155.
Original Russian Text Copyright © 2003 by Tovstonog, Kulik, Kirpichev, Kukushkin, Dietsche, von Klitzing.