Cyclotron resonance in Cd1-xFexS and Ga1-xMnxAs at megagauss magnetic fields

Y. H. Matsuda, H. Arimoto, N. Miura, A. Twardowski, H. Ohno, A. Shen, F. Matsukura

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7 Citations (Scopus)


We have performed infrared and far-infrared magneto-transmission experiments for Cd1-xFexS (x = 0.05) and Ga1-xMnxAs (x = 0.00004, 0.053) at very high magnetic fields up to 500 T. The cyclotron mass of electrons in Cd1-xFexS (x = 0.05) was found to be larger than that in CdS when we applied magnetic fields parallel to the c-axis of the crystal; the relative increase of the cyclotron mass shows anomalous temperature dependence at 85-300 K. Hole cyclotron resonance was observed in Ga1-xMnxAs (x = 0.00004) at 119 μm and 70.5 μm. In Ga1-xMnxAs (x = 0.053) far-infrared transmission does not show any resonance but a rapid decrease of transmission with magnetic field; the magneto-transmission spectrum depends strongly on temperature.

Original languageEnglish
Pages (from-to)565-568
Number of pages4
JournalPhysica B: Condensed Matter
Publication statusPublished - 1998 Dec 2


  • Cyclotron resonance
  • Diluted magnetic semiconductor
  • Infrared magneto-transmission
  • Megagauss magnetic fields


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