Exciton mass increase in a GaAs/AlGaAs quantum well in a transverse magnetic field

S. Yu. Bodnar, P. S. Grigoryev, D. K. Loginov, V. G. Davydov, Yu. P. Efimov, S. A. Eliseev, V. A. Lovtcius, E. V. Ubyivovk, V. Yu. Mikhailovskii, and I. V. Ignatiev
Phys. Rev. B 95, 195311 – Published 22 May 2017

Abstract

In this work we have investigated the exciton reflectance spectra of a high quality heterostructure with a GaAs/AlGaAs quantum well in a transverse magnetic field (Voigt geometry). It has been shown that application of the magnetic field leads to a decrease of energy distance between spectral features related to the excitonlike polariton modes. This effect has been treated as the magneto-induced increase of the exciton mass. We have shown that the hydrogenlike and diamagnetic exciton models are insufficient to describe the exciton behavior in the intermediate magnetic fields studied. Considering the symmetry of the problem, we have developed a phenomenological model which adequately describes the experimental data.

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  • Received 9 November 2016
  • Revised 5 April 2017

DOI:https://doi.org/10.1103/PhysRevB.95.195311

©2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

S. Yu. Bodnar1, P. S. Grigoryev2, D. K. Loginov2, V. G. Davydov3, Yu. P. Efimov3, S. A. Eliseev3, V. A. Lovtcius3, E. V. Ubyivovk3,4, V. Yu. Mikhailovskii3, and I. V. Ignatiev2

  • 1Institut fur Physik, Johannes Gutenberg-Universitat, Staudinger Weg 7, 55128 Mainz, Germany
  • 2Spin Optics laboratory, St-Petersburg State University, St-Petersburg, 198504, Russia
  • 3St. Petersburg State University, 1, Ulianovskaya str., Petrodvorets, St. Petersburg, 198504, Russia
  • 4ITMO University, 49 Kronverksky Pr., St. Petersburg, 197101, Russia

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Issue

Vol. 95, Iss. 19 — 15 May 2017

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