STRUCTURAL, ELECTRONIC AND MAGNETIC PROPERTIES OF VANADIUM DOPED Mn2CoZ(Al/Ga)

Abuova, F.; Inerbaev, T.; Abuova, A.; Kaptagay, G.; Мerali, N.

doi:10.32014/2021.2518-1726.79

Cited by 2 publications

(2 citation statements)

References 20 publications

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“…However, the deviation from d-electron localization leads to a decrease in magnetic moments, which is a characteristic feature of Heusler compounds. Therefore, based on the observations of the magnetic moments of Mn2FeSi and V2FeSi Heusler alloys, the atoms at A-and C-positions exhibit smaller magnetic moments, while the atom at the B-position has a larger magnetic moment in both structural types, which supports the conclusion of references [27,28].…”

Section: Compoundssupporting

confidence: 80%

“…In Heusler compounds, the magnetic state primarily depends on the position of metal atoms within the local environment. As stated in references [27,28], the presence of transition metal atoms as the closest neighbors leads to the formation of strong σ-bonds between d-electrons of these atoms. However, the deviation from d-electron localization leads to a decrease in magnetic moments, which is a characteristic feature of Heusler compounds.…”

Section: Compoundsmentioning

confidence: 90%

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FIRST-PRINCIPLES STUDIES OF X<sub>2</sub>FeSi HEUSLER ALLOYS

Merali

Soltanbek

Abuova

et al. 2023

jour

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The characteristics related to electricity and magnetism in Heusler alloys with both full (L21) and inverse (XA) structures X2FeSi (X = Mn, V) have been studied within the framework of the Density Functional Theory. Three different methods, namely LDA, GGA, and SCAN, were used to perform calculations. The aim was to investigate the energy stability of the L21 and XA structures for these compositions. The findings revealed that the XA structure is energetically stable for both structures. The choice of functional is indicated does not have a qualitative effect on the energy stability of the phases. Based on calculations, it was found that meta-GGA (SCAN) more accurately describes the electronic properties of these alloys. In the process of the calculations, it was found that these compounds are semimetals. An analysis was conducted from a local environment perspective to investigate and understand the reasons behind the semi-metallic band gap and the variations in electronic and magnetic properties observed in Heusler compounds. Calculations also showed that the magnetic moment Mn2FeSi for both structures was 1.99 µB/f.u. With regard to V2FeSi, µ = 2.00 µB/f.u. for structure XA and µ = 2.37 µB/f.u. for structure L21. These calculations are consistent with the Slater-Pauling rule for the XA structure.

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Section: Compoundssupporting

confidence: 80%

Section: Compoundsmentioning

confidence: 90%

FIRST-PRINCIPLES STUDIES OF X<sub>2</sub>FeSi HEUSLER ALLOYS

Merali

Soltanbek

Abuova

et al. 2023

jour

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Territorial distribution of germanium in the c₅ coal seam on the territory of the “Pavlohradska” mine

Ishkov,

Kozii,

Chernobuk

et al. 2024

E3S Web Conf.

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The actual issues of the distribution of germanium in the c5 coal seam in the territory of the “Pavlohradska” mine of Western Donbas were studied. Three zones with high germanium content were found on the territory of the c5 seam, and their spatial location was determined. It was established that the geological structure of the c5 coal seam in places with the highest germanium content has common features: minimal thickness, the presence of one or two partings, as well as the presence of at least two low-amplitude northeast-trending disturbances, which can be used as predictive criteria for determining zones with the largest germanium content. The increased variability of the thickness of the coal seam, its structure, the presence of discontinuities, and the lithologicalfacies variability of the immediate and main roof contribute to the increase in the gradients of the germanium content. The growth of the regional component of germanium content in the north-eastern direction was established. It has been proven that both syngenetic and epigenetic factors influence the content of germanium in the coal seam. The regression equation between these parameters is calculated, which allows you to predict the germanium content without conducting new tests and analytical studies.

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STRUCTURAL, ELECTRONIC AND MAGNETIC PROPERTIES OF VANADIUM DOPED Mn2CoZ(Al/Ga)

Cited by 2 publications

References 20 publications

FIRST-PRINCIPLES STUDIES OF X<sub>2</sub>FeSi HEUSLER ALLOYS

FIRST-PRINCIPLES STUDIES OF X<sub>2</sub>FeSi HEUSLER ALLOYS

Territorial distribution of germanium in the c₅ coal seam on the territory of the “Pavlohradska” mine

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STRUCTURAL, ELECTRONIC AND MAGNETIC PROPERTIES OF VANADIUM DOPED Mn2CoZ(Al/Ga)

Cited by 2 publications

References 20 publications

FIRST-PRINCIPLES STUDIES OF X<sub>2</sub>FeSi HEUSLER ALLOYS

FIRST-PRINCIPLES STUDIES OF X<sub>2</sub>FeSi HEUSLER ALLOYS

Territorial distribution of germanium in the c5 coal seam on the territory of the “Pavlohradska” mine

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Territorial distribution of germanium in the c₅ coal seam on the territory of the “Pavlohradska” mine