Magneto-absorption spectra of hydrogen-like yellow exciton series in cuprous oxide: excitons in strong magnetic fields

Sergey Artyukhin, Dmitry Fishman, Clement Faugeras, Marek Potemski, Alexandre Revcolevschi, Maxim Mostovoy, Paul H. M. van Loosdrecht*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

We study the absorption spectra of the yellow excitons in Cu2O in high magnetic fields using polarization-resolved optical absorption measurements with a high frequency resolution. We show that the symmetry of the yellow exciton results in unusual selection rules for the optical absorption of polarized light and that the mixing of ortho- and para-excitons in magnetic field is important. The calculation of the energies of the yellow exciton series in strong and weak magnetic field limits suggests that a broad n = 2 line is comprized by two closely overlapping lines, gives a good fit to experimental data and allows to interpret the complex structure of excitonic levels.

Original languageEnglish
Article number7818
Number of pages11
JournalScientific Reports
Volume8
DOIs
Publication statusPublished - 18-May-2018

Keywords

  • ABSORPTION-SPECTRA
  • FINE-STRUCTURE
  • CU2O
  • SEMICONDUCTORS
  • CRYSTALS

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