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- Title
Superfluidity of “dirty” excitons.
- Authors
Lozovik, Yu. E.; Berman, O. L.; Ruvinskiı, A. M.
- Abstract
The effect of a random field due to impurities, boundary irregularities, and so on, on the superfluidity of a three-dimensional system of excitons and a quasi-two-dimensional system of direct or spatially indirect excitons is studied. The influence of a random field on the density of the superfluid component in the indicated excitonic systems at low temperatures T is investigated. The interaction between excitons is taken into account in the ladder approximation. For quasi-two-dimensional excitonic systems in a random field the Kosterlitz–Thouless temperature in the superfluid state is calculated. © 1999 American Institute of Physics.
- Subjects
EXCITON theory; SUPERFLUIDITY
- Publication
JETP Letters, 1999, Vol 69, Issue 8, p616
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.567969