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This article is cited in 2 scientific papers (total in 2 papers)
Magnetism
Influence of substrate crystal structure on the magnetic anisotropy of Mn$_{x}$Si$_{1-x}$ ($x\approx0.5$) films
A. B. Drovosekova, L. S. Parshinab, O. D. Khramovab, D. S. Gusevb, O. A. Novodvorskiib, A. N. Taldenkovc, K. Yu. Chernoglazovc, V. V. Ryl'kovcd a P. L. Kapitza Institute for Physical Problems, Russian Academy of Sciences, Moscow, Russia
b Institute on Laser and Information Technologies, Branch of the Federal Research Centre "Crystallography and Photonics’" Shatura, Russia
c National Research Centre "Kurchatov Institute", Moscow, Russia
d Kotelnikov Institute of Radioengineering and Electronics, Fryazino Branch, Russian Academy of Sciences, Fryazino, Russia
Abstract:
Thin films of Mn$_{x}$Si$_{1-x}$ ($x\approx0.5$) alloy were synthesized by pulsed laser deposition in a droplet-free mode on sapphire substrates with different crystallographic cut-off plane orientations ($c$-Al$_{2}$O$_{3}$ and $r$-Al$_{2}$O$_{3}$) at various laser energy densities $E$ at the polycrystalline target MnSi. X-ray structure properties, as well as static and resonance magnetic characteristics of the films depending on the value of $E$ and substrate orientation were investigated. The presence of a ferromagnetic phase with an unusually high Curie temperature $T_{C}\sim$ 300 K which is untypical of MnSi single crystals ($T_{C}\approx$ 30 K) was revealed in films deposited using high laser energy densities $E>6$ J/cm$^2$ at the target. The magnetic moment of the films on $c$-Al$_{2}$O$_{3}$ substrates is somewhat larger than in the case of $r$-Al$_{2}$O$_{3}$ substrates. Moreover, the films deposited on $c$-Al$_{2}$O$_{3}$ substrates show significantly higher values of the effective magnetic anisotropy field $4\pi M_{\operatorname{eff}}$, measured by ferromagnetic resonance. Obtained data show that the structure of the substrate has a remarkable influence on the formation process and magnetic properties of the high-temperature ferromagnetic phase in the Mn$_{x}$Si$_{1-x}$ films.
Keywords:
Mn$_{x}$Si$_{1-x}$ alloys, pulsed laser deposition, ferromagnetic films, magnetic anisotropy.
Received: 21.05.2021 Revised: 21.05.2021 Accepted: 25.05.2021
Citation:
A. B. Drovosekov, L. S. Parshina, O. D. Khramova, D. S. Gusev, O. A. Novodvorskii, A. N. Taldenkov, K. Yu. Chernoglazov, V. V. Ryl'kov, “Influence of substrate crystal structure on the magnetic anisotropy of Mn$_{x}$Si$_{1-x}$ ($x\approx0.5$) films”, Fizika Tverdogo Tela, 63:10 (2021), 1527–1531; Phys. Solid State, 63:11 (2021), 1638–1642
Linking options:
https://www.mathnet.ru/eng/ftt7987 https://www.mathnet.ru/eng/ftt/v63/i10/p1527
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