Magneto-photoluminescence in Cd1-xMnxTe

Jun'ichiro Nakahara, Taihei Nouchi, Hiroyuki Arai, Iwao Mogi, Giyuu Kido, Junji Watanabe

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Photoluminescence (PL) spectra near the fundamental absorption edge are investigated in Cd1-xMnxTe (x = 0.03 to 0.3) at 4.2 K in magnetic fields up to 23 T for Faraday configuration. For PL of free excitons and neutral-donor(acceptor)-bound-exciton transitions in low concentration of Mn (x = 0.03 and 0.05), diamagnetic shifts are observed in the region of high magnetic fields. In the case of x = 0.1 and 0.3 the decrease in energy of these PL peaks is observed in the region of high magnetic fields with increasing magnetic fields corresponding to magnetization steps and large phenomenological temperature T0 describing spin interaction. We determine exchange integrals and T0 using the magnetic field dependence of PL peaks. For x ≤ 0.1 PL spectra of self-trapped magnetic polaron are observed but they disappear at low magnetic fields as ∼1 T.

Original languageEnglish
Pages (from-to)830-834
Number of pages5
JournalJournal of Crystal Growth
Volume117
Issue number1-4
DOIs
Publication statusPublished - 1992 Feb 2

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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