Observation of the low-temperature peak in the interlayer tunneling conductance in bilayer electron systems in the absence of the magnetic field

A high narrow peak in the interlayer differential tunnel conductance has been observed in heterostructures with two closely located electron layers at low temperatures. Analysis of the experimental results suggests that this peak is due to the interlayer phase coherence, which appears in the system...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2007-07, Vol.105 (1), p.177-180
Main Authors: Khanin, Yu. N., Vdovin, E. E., Grigor’ev, M. V., Eaves, L., Makarovskiĭ, O. N., Henini, M.
Format: Article
Language:English
Subjects:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
ELECTRON PAIRS
ELECTRONS
EXCITONS
LAYERS
MAGNETIC FIELDS
TUNNEL EFFECT
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Summary:A high narrow peak in the interlayer differential tunnel conductance has been observed in heterostructures with two closely located electron layers at low temperatures. Analysis of the experimental results suggests that this peak is due to the interlayer phase coherence, which appears in the system under investigation owing to the Bose condensation of indirect excitons, i.e., pairs of electrons and holes from different layers in the absence of the magnetic field.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776107070394