Document Type

Article

Publication Date

4-1972

Journal or Book Title

Physical Review B

Volume

5

Issue

8

First Page

2829

Last Page

2835

DOI

10.1103/PhysRevB.5.2829

Abstract

Measurements were made of the absorptivity of single crystals of zinc from 0.1 to 3.0 eV at 4.2K. Polarized radiation was used with the electric field vector parallel or perpendicular to the c axis of the crystal. New structure was found for E⃗ ⊥c^at about 0.15 eV; no low-energy structure was observed for E⃗ ∥c^. The low-energy interband transition is attributed to transitions near the point K in the Brillouin zone. The structure in the near-infrared and visible spectra is highly temperature dependent. Comparisons of the absorptivity and the conductivity are made between our 4.2-K data and the data of Rubloff for 77 and 300 K and with the calculations of Kasowski. Thermomodulation measurements on basal-plane samples are described which show the conductivity doublet as originating from two distinct infrared-absorption structures. The low-energy absorptivity is found to be nearly constant for E⃗ ∥c^. An optical effective-mass component m∗∥of 2.0m0 is computed from theories of the anomalous skin effect.

Comments

This article is from Physical Review B 5 (1972): 2829, doi:10.1103/PhysRevB.5.2829. Posted with permission.

Copyright Owner

The American Physical Society

Language

en

File Format

application/pdf

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