Title

Optical properties of molecular beam epitaxy-grown Zn1−xMnxTe thin films measured by complementary techniques

Document Type

Article

Publication Date

10-2003

Abstract

By using a combination of prism coupler, reflectivity, and spectroscopicellipsometry techniques, we have determined the dielectric function of a series of molecular beam epitaxy-grown Zn1−xMnxTe" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px 2px 0px 0px; margin: 0px; position: relative;">Zn1−xMnxTeZn1−xMnxTe thin films. These results have enabled us to determine the critical point parameters that correspond to the electronic transitions in the Brillouin zone for this particular alloy family. We find that, although the fundamental band gap E0" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px 2px 0px 0px; margin: 0px; position: relative;">E0E0 increases with x for this alloy, E1" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px 2px 0px 0px; margin: 0px; position: relative;">E1E1 and E1+Δ1" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px 2px 0px 0px; margin: 0px; position: relative;">E1+Δ1E1+Δ1 transition energies decrease with x for the Zn1−xMnxTe" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px 2px 0px 0px; margin: 0px; position: relative;">Zn1−xMnxTeZn1−xMnxTesystem, in contrast to most other zinc-blende semiconductor alloys.

Journal

Journal of Applied Physics

Volume

94

Issue

4717