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Semiconductors

, Volume 52, Issue 5, pp 575–578 | Cite as

Long-Lived Magnetoexcitons and Two-Dimensional Magnetofermionic Condensate in GaAs/AlGaAs Heterostructure

  • L. V. Kulik
  • A. V. Gorbunov
  • A. S. Zhuravlev
  • V. B. Timofeev
  • I. V. Kukushkin
XXV International Symposium “Nanostructures: Physics and Technology”, Saint Petersburg, Russia, June 26–30, 2017. Excitons in Nanostructures
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Abstract

Excitation of long-lived triplet magnetoexcitons in a Hall insulator (filling factor ν = 2) with a high mobility of electrons, at low temperatures, Т < 1 K, enabled to discover a new collective state − magnetofermionic condensate, that interacts coherently with an external electromagnetic field, exhibits superradiant properties and, owing to its low viscosity, spreads over the surface of the two-dimensional structure for macroscopically large distances.

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References

  1. 1.
    A. J. Leggett, Rev. Mod. Phys. 71, S318 (1999).CrossRefGoogle Scholar
  2. 2.
    L. V. Kulik, A. V. Gorbunov, A. S. Zhuravlev, V. B. Timofeev, S. Dickmann, and I. V. Kukushkin, Sci. Rep. 5, 10354 (2015).ADSCrossRefGoogle Scholar
  3. 3.
    L. V. Kulik, A. S. Zhuravlev, S. Dickmann, A. V. Gorbunov, V. B. Timofeev, I. V. Kukushkin, and S. Schmult, Nat. Commun. 7, 13499 (2016).ADSCrossRefGoogle Scholar
  4. 4.
    Yu. A. Bychkov, S. V. Iordanskii, and G. M. Eliashberg, JETP Lett. 33, 143 (1981).ADSGoogle Scholar
  5. 5.
    C. Kallin and B. I. Halperin, Phys. Rev. B 30, 5655 (1984).ADSCrossRefGoogle Scholar
  6. 6.
    I. V. Lerner and Yu. E. Lozovik, Sov. Phys. JETP 51, 588 (1980).ADSGoogle Scholar
  7. 7.
    L. V. Kulik, I. V. Kukushkin, S. Dickmann, V. E. Kirpichev, A. B. Van’kov, A. L. Parakhonsky, J. H. Smet, K. von Klitzing, and W. Wegscheider, Phys. Rev. B 72, 073304 (2005).ADSCrossRefGoogle Scholar
  8. 8.
    R. H. Dicke, Phys. Rev. 93, 99 (1954).ADSCrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • L. V. Kulik
    • 1
  • A. V. Gorbunov
    • 1
  • A. S. Zhuravlev
    • 1
  • V. B. Timofeev
    • 1
  • I. V. Kukushkin
    • 1
  1. 1.Institute of Solid State PhysicsRussian Academy of SciencesChernogolovkaRussia

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