Photovoltaic Effect of ZnTe-Cd_{1-x}Mn_{x}Te_{1-y}Se_{y} Heterojunctions in Presence of Magnetic Field

• Authors: R.R. Gałązka , Nguyen The Khoi
• Languages of publication: EN

Abstracts

EN

Photovoltaic effect of the ZnTe-Cd_{1-x}Mn_{x}Te_{1-y}Se_{y} heterojunctions, prepared by vapor-transport epitaxy of ZnTe on Cd_{1-x}Mn_{x}Te_{1-y}Se_{y} substrate was studied. The photovoltaic measurements were carried out over the temperature range from 12 K to 300 K and in the magnetic field up to 6 T. In the magnetic field, maximum of the sensitivity corresponding to the energy of the forbidden gap of Cd_{1-x}Mn_{x}Te_{1-y}Se_{y} substrate splits into two components for σ^{+} and σ¯ circular polarizations of incident light. This phenomenon was ascribed to the exchange interaction of the magnetic moments of Mn^{++} ions with band electrons. From the value of the splitting energy the exchange integral N_{0}(α-β) was determined to be 1.15 ± 0.2 eV.

Keywords

EN

71.25.Tn; 78.20.Ls; 72.80.Ga

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1995
• Volume: 88
• Issue: 5
• Pages: 841-844

Dates

published

1995-11

Contributors

author

R.R. Gałązka

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

Nguyen The Khoi

• Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warszawa, Poland