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Title

Optical spectroscopy and electronic structure of compounds HoNi<sub>5 − x</sub>Al<sub>x</sub> (<i>x</i> = 0, 1, 2)

Authors

Knyazev, Yu. V.; Lukoyanov, A. V.; Kuz’min, Yu. I.; Kuchin, A. G.

Abstract

The optical properties of the compounds HoNi 5 − xAl x ( x = 0, 1, 2) have been investigated using the ellipsometric method in the wavelength range from 0.22 to 16 μm. The electronic structure of these intermetallic compounds has been calculated in the local electron-spin density approximation with the correction for strong electronic interactions in the 4 f shell of the holmium ions. The experimental dispersion dependences of optical conductivity in the region of interband light absorption have been interpreted based on the results of the calculation of the electron density of states. The plasma and relaxation frequencies of electrons have been determined.

Subjects

OPTICAL spectroscopy; ELECTRONIC structure; HOLMIUM compounds; OPTICAL properties of metals; ELLIPSOMETRY; INTERMETALLIC compounds; ABSORPTION spectra

Publication

Optics & Spectroscopy, 2013, Vol 115, Issue 5, p690

ISSN

0030-400X

Publication type

Academic Journal

DOI

10.1134/S0030400X1311009X

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