Reflection spectra of two polymorphic modifications of cadmium arsenide

Kozlov A; Sobolev V.; Knjazev A.

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KOZLOV, A, SOBOLEV, V., KNJAZEV, A.. Reflection spectra of two polymorphic modifications of cadmium arsenide. In: Semiconductors, 2005, vol. 39, pp. 285-288. ISSN 1063-7826. DOI: https://doi.org/10.1134/1.1882787

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Semiconductors

Volumul 39 / 2005 / ISSN 1063-7826

Reflection spectra of two polymorphic modifications of cadmium arsenide

DOI:https://doi.org/10.1134/1.1882787

Pag. 285-288

Kozlov A¹, Sobolev V.², Knjazev A.³

¹ Institute of the Electronic Engineering and Nanotechnologies "D. Ghitu" of the Academy of Sciences of Moldova,
² Udmurt State University,
³ Kursk State University

Disponibil în IBN: 16 octombrie 2023

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Rezumat

The optical properties of cadmium arsenide are studied. Reliable new data on the reflection spectra are obtained owing to the use of perfect crystals and high-precision spectral equipment. The reflection spectra of the polymorphic modifications α(′′)-Cd"3As"2 (space group D _4h¹⁵) and α(′)-Cd"3As"2 (space group D_4h¹¹) are recorded at room and liquid-nitrogen temperatures in polarized light (E ⊥ c, E ∥ c) at incident-light photon energies of 1-5 eV. For the α(′) modification, anisotropy is observed in the reflection spectra for the first time. The obtained results are compared with the known experimental and theoretical data.

Cuvinte-cheie
semiconductor, Polaritons, P system

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<description xml:lang='en' descriptionType='Abstract'><p>The optical properties of cadmium arsenide are studied. Reliable new data on the reflection spectra are obtained owing to the use of perfect crystals and high-precision spectral equipment. The reflection spectra of the polymorphic modifications &alpha;(&prime;&prime;)-Cd&quot;3As&quot;2 (space group D&nbsp;<sub>4h</sub><sup>15</sup>) and &alpha;(&prime;)-Cd&quot;3As&quot;2 (space group D<sub>4h</sub><sup>11</sup>) are recorded at room and liquid-nitrogen temperatures in polarized light (E &perp; c, E ∥ c) at incident-light photon energies of 1-5 eV. For the &alpha;(&prime;) modification, anisotropy is observed in the reflection spectra for the first time. The obtained results are compared with the known experimental and theoretical data.&nbsp;</p></description>
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