ELECTRONIC AND MAGNETIC PROPERTIES OF ALLOYS BASED ON THE DIRAC SEMIMETAL Cd 3 As 2  DOPED BY Mn ATOMS WITH THE VARIABLE CONCENTRATIONS

E. T. Kulatov; Кулатов Э. Т.; Yu. A. Uspenskii; Успенский Ю. А.

doi:10.31857/S2686740023050061

ELECTRONIC AND MAGNETIC PROPERTIES OF ALLOYS BASED ON THE DIRAC SEMIMETAL Cd₃As₂ DOPED BY Mn ATOMS WITH THE VARIABLE CONCENTRATIONS

Authors: Kulatov E.T.¹^,2, Uspenskii Y.A.²
Affiliations:
1. Prokhorov General Physics Institute of Russian Academy of Sciences
2. Lebedev Physical Institute of Russian Academy of Sciences
Issue: Vol 512, No 1 (2023)
Pages: 24-31
Section: ФИЗИКА
URL: https://journals.rcsi.science/2686-7400/article/view/232961
DOI: https://doi.org/10.31857/S2686740023050061
EDN: https://elibrary.ru/OVJMRW
ID: 232961

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Abstract
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Abstract

Theoretical studies predict that the low magnetic doping of the Dirac semimetals (DS) leads to the appearance in them of unusual quantum states and properties: the states of Weil semimetals, axionic insulator, topological superconductor and so on. However the specific materials in which these phenomena can be observed, as well as the characteristic concentrations of magnetic atoms are still unknown. In the present work, an ab initio study of the electronic and magnetic properties of the DS Cd₃As₂ doped isoelectronically with Mn atoms at concentrations of 4, 6, and 8% was performed. When analyzing the results, the main attention is paid to breaking spatial and time reversal symmetry in alloys, the behavior of the electronic structure near the top of the Dirac cone, and the processes of spin ordering in Mn atoms. The results obtained are compared with earlier theoretical and experimental studies, and on their basis a detailed picture of the effect of isoelectronic magnetic doping on the properties of the DS Cd₃As₂ is given.

Keywords

Dirac semimetals, spintronics, topotronics, electronic structure

About the authors

E. T. Kulatov

Prokhorov General Physics Institute of Russian Academy of Sciences; Lebedev Physical Institute of Russian Academy of Sciences

Author for correspondence.
Email: kulatov@nsc.gpi.ru
Russia, Moscow; Russia, Moscow

Yu. A. Uspenskii

Lebedev Physical Institute of Russian Academy of Sciences

Author for correspondence.
Email: uspenski@td.lpi.ru
Russia, Moscow

References

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