Investigation of MnGa Thin Films Grown Onto SiO2/Si
Abstract
This study reports on the synthesis and characterization of Ga-rich MnGa thin films sputter-deposited onto Si/SiO2substrates. The investigation focuses on the effect of growth temperature on the formation of the chemically ordered L10crystal structure. Spectroscopic and microscopic evidence correlate the stoichiometry, crystal structure, and microstructure of the films to their magnetostatic properties and their microscopic magnetic structure. Our results reveal stoichiometric inhomogeneities in the films, which are composed of multiple crystal phases. The formation of the L10MnGa crystal structure is enhanced with increasing deposition temperature, which correlates directly with the emergence of magnetic domains and a significant increase in magnetic coercivity. By elucidating the interplay between stoichiometry, crystal structure, microstructure and the magnetic properties of MnGa films deposited onto Si/SiO2, rather than on monocrystalline substrates, this work contributes to the understanding of MnGa growth on amorphous substrates.
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BibTeX
@article{garridosegovia2026investigation,
title = {{Investigation of MnGa Thin Films Grown Onto SiO2/Si}},
author = {María Garrido-Segovia and José Miguel García-Martín and André Thiaville and Gábor Katona and Igor Vladymyrskyi and Denys Makarov and Eamonn Devlin and Andreas Kaidatzis},
journal = {IEEE Transactions on Magnetics},
year = {2026},
month = nov,
doi = {10.1109/tmag.2026.3738140},
url = {https://hal.science/hal-05853646v1},
note = {CC BY},
}
RIS
TY - JOUR
TI - Investigation of MnGa Thin Films Grown Onto SiO2/Si
AU - María Garrido-Segovia
AU - José Miguel García-Martín
AU - André Thiaville
AU - Gábor Katona
AU - Igor Vladymyrskyi
AU - Denys Makarov
AU - Eamonn Devlin
AU - Andreas Kaidatzis
PY - 2026
DA - 2026/11/05
JO - IEEE Transactions on Magnetics
DO - 10.1109/tmag.2026.3738140
UR - https://hal.science/hal-05853646v1
AB - This study reports on the synthesis and characterization of Ga-rich MnGa thin films sputter-deposited onto Si/SiO2substrates. The investigation focuses on the effect of growth temperature on the formation of the chemically ordered L10crystal structure. Spectroscopic and microscopic evidence correlate the stoichiometry, crystal structure, and microstructure of the films to their magnetostatic properties and their microscopic magnetic structure. Our results reveal stoichiometric inhomogeneities in the films, which are composed of multiple crystal phases. The formation of the L10MnGa crystal structure is enhanced with increasing deposition temperature, which correlates directly with the emergence of magnetic domains and a significant increase in magnetic coercivity. By elucidating the interplay between stoichiometry, crystal structure, microstructure and the magnetic properties of MnGa films deposited onto Si/SiO2, rather than on monocrystalline substrates, this work contributes to the understanding of MnGa growth on amorphous substrates.
SN - 0018-9464
SN - 1941-0069
ER -