Second hidden triplet-singlet crossover of charged excitons in n -doped (Cd,Mn)Te/(Cd,Mg)Te in ultra-high magnetic fields

Yoshiro Hirayama, E. Kojima, S. Takeyama, G. Karczewski, T. Wojtowicz, J. Kossut

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We studied charged excitons realized in dilute magnetic semiconductor single-quantum wells (Cd,Mn)Te/(Cd,Mg)Te in high magnetic fields by photoluminescence (PL) measurements. We assigned two PL peaks which appeared in high magnetic fields as the singlet and the triplet charged excitons, respectively. It was shown from our PL analysis that the second hidden crossover between the triplet and the singlet charged excitons took place above 60 T. The singlet charged exciton transition was found to be the lowest energy in a higher magnetic side. Linear increase in the conduction-electron g factor with increasing magnetic field was deduced from the intensity ratio of two PL lines in magnetic fields up to 140 T.

Original languageEnglish
Article number125327
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume79
Issue number12
DOIs
Publication statusPublished - 2009 Mar 3
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Second hidden triplet-singlet crossover of charged excitons in n -doped (Cd,Mn)Te/(Cd,Mg)Te in ultra-high magnetic fields'. Together they form a unique fingerprint.

  • Cite this