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Physics of Metals and Metallography

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01.05.2021 | ELECTRICAL AND MAGNETIC PROPERTIES

Evolution of Electronic Structure of GdTi_0.05Mn_xFe_0.95_{– x}Si Compounds According to Band Calculations and Optical Investigations

verfasst von: Yu. V. Knyazev, L. N. Gramateeva, A. V. Lukoyanov, Yu. I. Kuz’min, A. G. Kuchin, S. P. Platonov

Erschienen in: Physics of Metals and Metallography | Ausgabe 5/2021

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Abstract

The electronic structure and optical properties of intermetallic compounds GdTi_0.05Mn_xFe_{0.95 –} _xSi (x = 0, 0.4, 0.6, 0.95) have been investigated in this work. Spin-polarized densities of electronic states and optical conductivity spectra have been calculated by the DFT + U method, taking strong electron correlations in the 4f shell of Gd into account. The optical properties of these materials in the energy range 0.078–4.6 eV have been measured by the ellipsometric method. The nature of the quantized light absorption has been discussed, and a comparison of the experimental and theoretical spectra of the interband optical conductivity has been used. It has been shown that the change in the optical properties of the compounds when iron is substituted for manganese can be interpreted qualitatively based on the calculations of the densities of electronic states.

Vorheriger Artikel Influence of Dimensional Effects on the Curie Temperature of Dy and Ho Thin Films

Nächster Artikel Experimental Study and Modeling of the Magnetic Properties of Dy–Co Films

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Titel: Evolution of Electronic Structure of GdTi0.05MnxFe0.95– xSi Compounds According to Band Calculations and Optical Investigations
verfasst von: Yu. V. Knyazev
L. N. Gramateeva
A. V. Lukoyanov
Yu. I. Kuz’min
A. G. Kuchin
S. P. Platonov
Publikationsdatum: 01.05.2021
Verlag: Pleiades Publishing
Erschienen in: Physics of Metals and Metallography / Ausgabe 5/2021
Print ISSN: 0031-918X
Elektronische ISSN: 1555-6190
DOI: https://doi.org/10.1134/S0031918X21050070

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