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High-resolution resonance spin-flip Raman spectroscopy of pairs of manganese ions in a CdTe quantum well

R. V. Cherbunin, V. M. Litviak, I. I. Ryzhov, A. V. Koudinov, S. Elsässer, A. Knapp, T. Kiessling, J. Geurts, S. Chusnutdinow, T. Wojtowicz, and G. Karczewski
Phys. Rev. B 101, 241301(R) – Published 3 June 2020

Abstract

We report the observation of tens of minor lines of the combinational spin-flip Raman scattering in a CdTe:Mn quantum well by means of the high-resolution optical spectroscopy. Classification of this manifold leads to four characteristic values of energy, that correspond to four different types of pair clusters of Mn ions: the nearest, second, third, etc., neighbors. All the four energies show up in a single experiment with a very high precision, providing experimental grounds for a deeper understanding of the dd exchange interactions in a diluted magnetic semiconductor and demonstrating the capacity of the employed method. The major (nearest-neighbor) exchange constant J1=6.15±0.05 K was found to consent with its previously reported value. Other detected characteristic energies are as follows (±0.05 K): J(2)=1.80 K, J(3)=1.39 K, J(4)=0.81 K.

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  • Received 4 March 2019
  • Revised 18 April 2020
  • Accepted 20 April 2020

DOI:https://doi.org/10.1103/PhysRevB.101.241301

©2020 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

R. V. Cherbunin1,2, V. M. Litviak1, I. I. Ryzhov1,2, A. V. Koudinov1,3,*, S. Elsässer2, A. Knapp2, T. Kiessling2, J. Geurts2, S. Chusnutdinow4, T. Wojtowicz5, and G. Karczewski4

  • 1Spin Optics Laboratory, St.-Petersburg State University, 198504 St.-Petersburg, Russia
  • 2Physikalisches Institut (EP3), Universität Würzburg, 97074 Würzburg, Germany
  • 3Ioffe Institute, 194021 St.-Petersburg, Russia
  • 4Institute of Physics, Polish Academy of Sciences, 02668 Warsaw, Poland
  • 5International Research Centre MagTop, Institute of Physics, Polish Academy of Sciences, 02668 Warsaw, Poland

  • *koudinov@orient.ioffe.ru

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Issue

Vol. 101, Iss. 24 — 15 June 2020

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