First-principles exploration of electronic, optical and magnetic features of Nb-doped BeTe for spintronic and optoelectronic devices
Physica B: Condensed Matter, ISSN: 0921-4526, Vol: 696, Page: 416631
2025
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Data on Optoelectronics Reported by Researchers at University of Agriculture Faisalabad (First-principles Exploration of Electronic, Optical and Magnetic Features of Nb-doped Bete for Spintronic and Optoelectronic Devices)
2025 JAN 06 (NewsRx) -- By a News Reporter-Staff News Editor at Middle East Daily -- Current study results on Nanotechnology - Optoelectronics have been
Article Description
Herein, the magneto-electronic and optical features of Nb-doped Beryllium telluride (Be 1−x Nb x Te) have been computed using first-principles calculations. In electronic characteristics, the spin-polarized band dispersions and density of states explicate the half-metallic ferromagnetism at 6.25 % and 12.5 % doping concentration while metallic nature at 25 % doping. The total magnetic moments are recorded as 1.0, 2.0 and 4.0 μ B for Be 0.9375 Nb 0.0625 Te, Be 0.875 Nb 0.125 Te and Be 0.75 Nb 0.25 Te, correspondingly. A tiny localized moment is generated at Be and Te site owing to TM- d with p-d hybridization. Optical parameters including refractive index n(ω), absorption coefficient α(ω), dielectric function ε (ω), optical conductivity σ(ω), extinction coefficient k(ω), and reflectivity R(ω) have been investigated. Be 1−x Nb x Te alloy has maximum value of α(ω) and minimum value of R(ω) within visible to UV zone. Overall outcomes imply that Be 1−x Nb x Te alloys seem to be the potential candidates for spintronics and optoelectronic devices.
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Elsevier BV
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