Abstract
In this article, we report research data for the isothermal magnetization of a composite consisting of Cd3As2 Dirac semimetal and MnAs ferromagnet (30 mol %) at pressures up to 5 GPa. A magnetic transformation in MnAs inclusions, the size of which presumably varies from a micro- to nanoscale, has been found to be similar to that in bulk MnAs compound, except for a hysteresis in the range of magnetostructural transformation. Under hydrostatic pressure, a magnetization maximum has been revealed at pressures P ≥ 0.77 GPa, which is indicative of ferromagnetic ordering improvement. The conclusion has been drawn that that the above features are due to the superparamagnetic nature of nanometer-sized MnAs inclusions in the Cd3As2 matrix.
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Translated by V. Isaakyan
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Saypulaeva, L.A., Arslanov, T.R., Alibekov, A.G. et al. Magnetization of Cd3As2–30 mol % MnAs Composite at High Pressure. Tech. Phys. 67, 112–114 (2022). https://doi.org/10.1134/S1063784222010133
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DOI: https://doi.org/10.1134/S1063784222010133