| Numéro |
J. Phys. IV France
Volume 109, June 2003
|
|
|---|---|---|
| Page(s) | 123 - 126 | |
| DOI | https://doi.org/10.1051/jp4:20030660 | |
J. Phys. IV France 109 (2003) 123
DOI: 10.1051/jp4:20030660
Photoacoustic study of Cd 1-x-yBe xMn yTe mixed crystals
J. Zakrzewski, F. Firszt, S. Legowski, H. Meczynska, A. Marasek and M. PawlakInstytut Fizyki, Uniwersytet Mikolaja Kopernika, Ul. Grudziadzka 5-7, 87-100 Torun, Poland
Abstract
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.
© EDP Sciences 2003