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Optical constants and band transitions of Zn 3 P 2 and Zn 3 As 2

1984; IOP Publishing; Volume: 17; Issue: 17 Linguagem: Inglês

10.1088/0022-3719/17/17/018

1747-3802

J. Misiewicz, J. Wróbel, K. Jezierski,

Photonic and Optical Devices

The results of reflectivity measurements for An3P2 and Zn3As2 in the energy range 0.5-5 eV for polarised light, e//c and e perpendicular to c, at room temperature are presented. By using a modified algorithm for the Kramers-Kronig analysis the optical constants of both compounds have been calculated. Utilising group theory the selection rules for the optical transitions in these compounds have been specified and the observed structure of the reflectivity spectra has been related to the possible interband transitions.