Optical investigation of the electronic structure of alloys Сu-Fе
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Optical investigation of the electronic structure of alloys Сu-Fе
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| Creator |
Vovchenko, V.V.
Staschuk, V.S. Poperenko, L.V. Lysiuk, V.O. |
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| Description |
We investigate the optical properties of Cu-Fe alloys in a wide interval of concentrations (7.5–30 at. %) and in a wide spectral interval (0.25–7 µm). An additional absorption associated with interband electron transitions from localized states of impurities to the Fermi level has been revealed in the 0.98–1.9-eV spectral range. The energy bands in Cu-Fe alloys are almost undeformed and similar to copper ones, while the Fe impurity forms localized d-bands at a distance of about 1.0-1.6 eV from the Fermi level. For high impurity concentrations, the experimental optical conductivity spectra σ (hν) of the alloys are determined by a superposition of the spectra of Fe and the appropriate solid solution with the corresponding weight coefficients. The obtained experimental data allow one to calculate the density of states N (Е) which is related to the impurity band. |
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| Date |
2017-05-28T17:57:37Z
2017-05-28T17:57:37Z 2007 |
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| Type |
Article
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| Identifier |
Optical investigation of the electronic structure of alloys Сu-Fе / V.V. Vovchenko, V.S. Staschuk, L.V. Poperenko, V.O. Lysiuk // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2007. — Т. 10, № 3. — С. 58-60. — Бібліогр.: 5 назв. — англ.
1560-8034 PACS 71.20.-b, 78.66.Bz http://dspace.nbuv.gov.ua/handle/123456789/118123 |
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| Language |
en
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| Relation |
Semiconductor Physics Quantum Electronics & Optoelectronics
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| Publisher |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
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