Electronic Structure of the Fe-doped TiSe2 Material: What Quantum Conditions Improve the Efficiency in the Energy Transmission Technology?

Rosa, Guilherme Bonifácio; da Rocha, Gabriel G.; Jurelo, Alcione; de Lazaro, Sergio R.

doi:10.1007/978-3-031-46545-1_4

Engineering Materials

2023

DOI: 10.1007/978-3-031-46545-1_4

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Electronic Structure of the Fe-doped TiSe2 Material: What Quantum Conditions Improve the Efficiency in the Energy Transmission Technology?

Guilherme Bonifácio Rosa,

Gabriel G. da Rocha,

Alcione Jurelo

et al.

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2024

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Structural and Electronic Properties of the Magnetic and Nonmagnetic X_0.125Mg_0.875B₂ (X = Nb, Ni, Fe) Materials: A DFT/HSE06 Approach to Investigate Superconductor Behavior

Rosa,

Lacerda,

de Lazaro

2024

ACS Omega

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MgB2 material has a simple composition and structure that is well-reported and characterized. This material has been widely studied and applied in the last 20 years as a superconductor in wire devices and storage material for H in the hydride form. MgB2 doped with transition metals improves the superconductor behavior, such as the critical temperature (T cs) or critical current (J sc) for the superconducting state. The results obtained in this manuscript indicate that Nb-, Fe-, and Ni-doping in the Mg site leads to a contraction of the unit cell through the spin polarization on the electronic resonance of the boron layer. Fe and Ni transition metals doping perturb the electronic resonance because of stronger dopant-boron bonds. The unpaired electrons are transferred from 3d orbitals to the empty 2p z orbitals of the boron atoms, locating α electrons in the σ bonds and β electrons in the π orbitals. The observed influence of magnetic dopants on MgB2 enables the proposal of an electronic mechanism to explain the spin polarization of boron hexagonal rings.

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Structural and Electronic Properties of the Magnetic and Nonmagnetic X_0.125Mg_0.875B₂ (X = Nb, Ni, Fe) Materials: A DFT/HSE06 Approach to Investigate Superconductor Behavior

Rosa,

Lacerda,

de Lazaro

2024

ACS Omega

View full text Add to dashboard Cite

show abstract

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Electronic Structure of the Fe-doped TiSe2 Material: What Quantum Conditions Improve the Efficiency in the Energy Transmission Technology?

Cited by 1 publication

References 38 publications

Structural and Electronic Properties of the Magnetic and Nonmagnetic X_0.125Mg_0.875B₂ (X = Nb, Ni, Fe) Materials: A DFT/HSE06 Approach to Investigate Superconductor Behavior

Structural and Electronic Properties of the Magnetic and Nonmagnetic X_0.125Mg_0.875B₂ (X = Nb, Ni, Fe) Materials: A DFT/HSE06 Approach to Investigate Superconductor Behavior

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Electronic Structure of the Fe-doped TiSe2 Material: What Quantum Conditions Improve the Efficiency in the Energy Transmission Technology?

Cited by 1 publication

References 38 publications

Structural and Electronic Properties of the Magnetic and Nonmagnetic X0.125Mg0.875B2 (X = Nb, Ni, Fe) Materials: A DFT/HSE06 Approach to Investigate Superconductor Behavior

Structural and Electronic Properties of the Magnetic and Nonmagnetic X0.125Mg0.875B2 (X = Nb, Ni, Fe) Materials: A DFT/HSE06 Approach to Investigate Superconductor Behavior

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Structural and Electronic Properties of the Magnetic and Nonmagnetic X_0.125Mg_0.875B₂ (X = Nb, Ni, Fe) Materials: A DFT/HSE06 Approach to Investigate Superconductor Behavior

Structural and Electronic Properties of the Magnetic and Nonmagnetic X_0.125Mg_0.875B₂ (X = Nb, Ni, Fe) Materials: A DFT/HSE06 Approach to Investigate Superconductor Behavior