Abstract
A high narrow peak of differential interlayer tunneling conductance is observed in the absence of a magnetic field at low temperatures in heterostructures with two closely spaced electron layers. The analysis of experimental results suggests that this peak is a consequence of the interlayer phase coherence, which arises in the system owing to the Bose condensation of interlayer excitons, i.e., pairs formed by electrons and holes belonging to different layers, in accordance with the recent theoretical predictions.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
I. B. Spielman, J. P. Eisenstein, L. N. Pfeiffer, and K. W. West, Phys. Rev. Lett. 84, 5808 (2000).
L. B. Spielman, J. P. Eisenstein, L. N. Pfeiffer, and K. W. West, Phys. Rev. Lett. 87, 036803 (2001).
A. I. Bezuglyĭ, Fiz. Nizk. Temp. 31, 1153 (2005).
A. I. Bezuglyĭ and S. I. Shevchenko, Fiz. Nizk. Temp. 30, 282 (2004).
K. S. Chan, F. W. Sheard, G. A. Toombs, and L. Eaves, Phys. Rev. B 56, 14 474 (1997).
N. Turner, J. T. Nicholls, E. H. Linfield, et al., Phys. Rev. B 54, 10 614 (1996).
S. I. Shevchenko, Fiz. Nizk. Temp. 2, 505 (1976) [Sov. J. Low Temp. Phys. 2, 251 (1976)].
J. H. Davies, The Physics of Low-Dimensional Semiconductors (Cambridge Univ. Press, Cambridge, 1998), p. 155.
Author information
Authors and Affiliations
Additional information
Original Russian Text © Yu.N. Khanin, E.E. Vdovin, Yu.V. Dubrovskiĭ, M. Henini, 2006, published in Pis’a v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2006, Vol. 84, No. 4, pp. 243–247.
Rights and permissions
About this article
Cite this article
Khanin, Y.N., Vdovin, E.E., Dubrovskiĭ, Y.V. et al. Experimental observation of phase coherence in bilayer systems in the absence of a magnetic field. Jetp Lett. 84, 209–213 (2006). https://doi.org/10.1134/S0021364006160090
Received:
Issue Date:
DOI: https://doi.org/10.1134/S0021364006160090