J. Phys. IV France 109 (2003) 123
Photoacoustic study of Cd 1-x-yBe xMn yTe mixed crystalsJ. Zakrzewski, F. Firszt, S. Legowski, H. Meczynska, A. Marasek and M. Pawlak
Instytut Fizyki, Uniwersytet Mikolaja Kopernika, Ul. Grudziadzka 5-7, 87-100 Torun, Poland
Quaternary diluted niagnetic semiconductors Cd 1-x-yBe xMn yTe obtained by Bridgman method for x=0.01 and were investigated. The photoacoustic spectroscopy with a piezoelectric transducer was employed to evaluate the energy gaps of Cd 1-x-yBe xMn yTe bulk mixed crystals at room temperature. The increase of the energy gap with increasing x value has been observed. Characteristic features of amplitude and phase photoacoustic spectra were discussed.
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