Synthesis, structural and magnetic properties of physical vapor deposited Fe/Si(100) and Fe/Si(111) thin films

Kharmouche, A.; Bensehil, I.

doi:10.1007/s10854-018-0330-4

Cited by 3 publications

(1 citation statement)

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“…The spectrum shows a prominent diffraction peak at 44.6°and two smaller peaks, 65°and 82°, corresponding to the Fe (110), Fe (200), and Fe (211) Bragg reflection of a body-centered crystal structure, respectively. The strong intensity of the (110) peak indicates that the orientation of the film is predominantly in 〈110〉 direction, which is expected for e-beam evaporated Fe film [22]. The lattice constant was calculated using Bragg's and Scherrer's formula to 2.87 Å, similar to the bulk lattice constant, and the width of the peaks revealed a Fe crystallite size of ∼9 nm, indicating a polycrystalline film.…”

Section: Growth and Characterization Of The Gaas Nws And Of The Iron ...mentioning

confidence: 90%

Lasing in Zn-doped GaAs nanowires on an iron film

et al. 2023

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In this work, we demonstrate optically pumped lasing in highly Zn-doped GaAs nanowires lying on an iron film. The conically shaped nanowires are first covered with an 8 nm-thick Al2O3 film to prevent atmospheric oxidation and mitigate band-bending effects. Multimode and single-mode lasing have been observed for nanowires with a length greater or smaller than 2 µm, respectively. Finite difference time domain calculations reveal a weak electric field enhancement in the Al2O3 layer at the nanowire/iron film interface for the lasing modes. The high Zn acceptor concentration in the nanowires provides enhanced radiative efficiency and enables lasing on the iron film despite plasmonic losses. Our results open avenues for integrating nanowire lasers on ferromagnetic substrates to achieve new functionalities, such as magnetic field-induced modulation.

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Section: Growth and Characterization Of The Gaas Nws And Of The Iron ...mentioning

confidence: 90%