Resonant spin amplification of resident electrons in CdTe/(Cd,Mg)Te quantum wells subject to tilted magnetic fields

E. A. Zhukov, O. A. Yugov, I. A. Yugova, D. R. Yakovlev, G. Karczewski, T. Wojtowicz, J. Kossut, and M. Bayer

Phys. Rev. B 86, 245314 – Published 17 December 2012

Abstract

Electron spin coherence in CdTe/(Cd,Mg)Te quantum wells is studied experimentally and theoretically in tilted external magnetic fields generated by a superconducting vector magnet. The long-lived spin coherence is measured by pump-probe Kerr rotation in the resonant spin amplification (RSA) regime. The shape of RSA signals is very sensitive to weak magnetic field components deviating from the Voigt or Faraday geometries.

Received 24 August 2012

DOI:https://doi.org/10.1103/PhysRevB.86.245314

Authors & Affiliations

E. A. Zhukov¹, O. A. Yugov^1,2, I. A. Yugova^1,2, D. R. Yakovlev^1,3, G. Karczewski⁴, T. Wojtowicz⁴, J. Kossut⁴, and M. Bayer¹

¹Experimentelle Physik 2, Technische Universität Dortmund, 44221 Dortmund, Germany
²St. Petersburg State University, 198504 St. Petersburg, Russia
³Ioffe Physical-Technical Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia
⁴Institute of Physics, Polish Academy of Sciences, 02668 Warsaw, Poland

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Issue

Vol. 86, Iss. 24 — 15 December 2012

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Physical Review B

covering condensed matter and materials physics