Published in:

Physical Review B 68,3 (2003) 033206;

Abstract

Optical absorption experiments were performed using diamond-anvil cells to measure the hydrostatic pressure dependence of the fundamental bandgap of ZnSe1-xTex alloys over the entire composition range. The first- and second-order pressure coefficients were obtained as a function of composition. The coefficients do not vary linearly between the ZnSe and ZnTe end-point values. Starting from the ZnSe side, the magnitude of both coefficients increases slowly until xapproximate to0.7, which is the point where the ambient-pressure bandgap shows a minimum. At larger values of x the coefficients rapidly approach the values of ZnTe. The large deviations of the pressure coefficients from the linear interpolation between ZnSe and ZnTe are explained in terms of the band anticrossing model.

Keywords

direct absorption-edge;; semiconductor alloys;; gaasn

Date of this Version

January 2003

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.