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

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Resumo

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.

Sobre autores

E. Kulatov

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

Autor responsável pela correspondência
Email: kulatov@nsc.gpi.ru
Russia, Moscow; Russia, Moscow

Yu. Uspenskii

Lebedev Physical Institute of Russian Academy of Sciences

Autor responsável pela correspondência
Email: uspenski@td.lpi.ru
Russia, Moscow

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Declaração de direitos autorais © Э.Т. Кулатов, Ю.А. Успенский, 2023