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Zanib M, Iqbal MW, Ullah H, Almutairi BS, Laref A. Study of half-metallic ferromagnetism and transport characteristics of double perovskites Sr 2AIrO 6 (A = Y, Lu, Sc) for spintronic applications. RSC Adv 2024; 14:17877-17887. [PMID: 38836171 PMCID: PMC11149398 DOI: 10.1039/d4ra03417a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Accepted: 05/20/2024] [Indexed: 06/06/2024] Open
Abstract
The precise manipulation of electromagnetic and thermoelectric characteristics in the miniaturization of electronic devices offers a promising foundation for practical applications in quantum computing. Double perovskites characterized by stability, non-toxicity, and spin polarization, have emerged as appealing candidates for spintronic applications. This study explores the theoretical elucidation of the influence of iridium's 5d electrons on the magnetic characteristics of Sr2AIrO6 (A = Y, Lu, Sc) with WIEN2k code. The determined formation energies confirm the thermodynamic stability while an analysis of band structure and the density of states (DOS) reveals a half-metallic ferromagnetic character. This characteristic is comprehensible through the analysis of exchange constants and exchange energies. The current analysis suggests that crystal field effects, a fundamental hybridization process and exchange energies contribute to the emergence of ferromagnetism due to electron-spin interactions. Finally, assessments of electrical and thermal conductivities, Seebeck coefficient, power factor, figure of merit and magnetic susceptibility are conducted to assess the potential of the investigated materials for the applications in thermoelectric devices.
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Affiliation(s)
- Maiza Zanib
- Department of Physics, Riphah International University Lahore Campus 56000 Pakistan
| | - M Waqas Iqbal
- Department of Physics, Riphah International University Lahore Campus 56000 Pakistan
| | - Hamid Ullah
- Department of Physics, Riphah International University Lahore Campus 56000 Pakistan
| | - Badriah S Almutairi
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University P.O. Box 84428 Riyadh 11671 Saudi Arabia
| | - A Laref
- Department of Physics and Astronomy, College of Science, King Saud University Riyadh 11451 Kingdom of Saudi Arabia
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Al-Qhtani M, Mustafa GM, Mazhar N, Bouzgarrou S, Mahmood Q, Mera A, Zaki ZI, Mostafa NY, Alotaibi SH, Amin MA. Half Metallic Ferromagnetism and Transport Properties of Zinc Chalcogenides ZnX 2Se 4 (X = Ti, V, Cr) for Spintronic Applications. MATERIALS (BASEL, SWITZERLAND) 2021; 15:55. [PMID: 35009202 PMCID: PMC8746128 DOI: 10.3390/ma15010055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/12/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
In ferromagnetic semiconductors, the coupling of magnetic ordering with semiconductor character accelerates the quantum computing. The structural stability, Curie temperature (Tc), spin polarization, half magnetic ferromagnetism and transport properties of ZnX2Se4 (X = Ti, V, Cr) chalcogenides for spintronic and thermoelectric applications are studied here by density functional theory (DFT). The highest value of Tc is perceived for ZnCr2Se4. The band structures in both spin channels confirmed half metallic ferromagnetic behavior, which is approved by integer magnetic moments (2, 3, 4) μB of Ti, V and Cr based spinels. The HM behavior is further measured by computing crystal field energy ΔEcrystal, exchange energies Δx(d), Δx (pd) and exchange constants (Noα and Noβ). The thermoelectric properties are addressed in terms of electrical conductivity, thermal conductivity, Seebeck coefficient and power factor in within a temperature range 0-400 K. The positive Seebeck coefficient shows p-type character and the PF is highest for ZnTi2Se4 (1.2 × 1011 W/mK2) among studied compounds.
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Affiliation(s)
- Mohsen Al-Qhtani
- Materials Science and Engineering Group, Department of Chemistry, Faculty of Science, Taif University, Taif 21944, Saudi Arabia; (M.A.-Q.); (Z.I.Z.); (N.Y.M.); (S.H.A.); (M.A.A.)
| | - Ghulam M. Mustafa
- Department of Physics, Division of Science & Technology, University of Education, Lahore 54000, Pakistan
| | - Nasheeta Mazhar
- Department of Physics, University of Lahore, Lahore 05422, Pakistan;
| | - Sonia Bouzgarrou
- Laboratoire de Microélectronique et Instrumentation (UR 03/13–04), Faculté des Sciences de Monastir, Avenue de l’Environnement, Monastir 5000, Tunisia;
- Department of Physics, College of Science, Qassim University, P.O. Box 64, Buraydah 51452, Saudi Arabia
| | - Qasim Mahmood
- Basic and Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
- Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Abeer Mera
- Department of Physics, College of Arts and Science, Prince Sattam Bin Abdulaziz University, Wadi Addawasir 11991, Saudi Arabia;
- Department of Physics, Faculty of Science, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Zaki I. Zaki
- Materials Science and Engineering Group, Department of Chemistry, Faculty of Science, Taif University, Taif 21944, Saudi Arabia; (M.A.-Q.); (Z.I.Z.); (N.Y.M.); (S.H.A.); (M.A.A.)
| | - Nasser Y. Mostafa
- Materials Science and Engineering Group, Department of Chemistry, Faculty of Science, Taif University, Taif 21944, Saudi Arabia; (M.A.-Q.); (Z.I.Z.); (N.Y.M.); (S.H.A.); (M.A.A.)
| | - Saad H. Alotaibi
- Materials Science and Engineering Group, Department of Chemistry, Faculty of Science, Taif University, Taif 21944, Saudi Arabia; (M.A.-Q.); (Z.I.Z.); (N.Y.M.); (S.H.A.); (M.A.A.)
| | - Mohammed A. Amin
- Materials Science and Engineering Group, Department of Chemistry, Faculty of Science, Taif University, Taif 21944, Saudi Arabia; (M.A.-Q.); (Z.I.Z.); (N.Y.M.); (S.H.A.); (M.A.A.)
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Tanveer W, Mahmood Q, Mahmood I, Ashiq M, Ramay SM, Mahmood A. First-principles calculation to investigate half metallic ferromagnetism and thermoelectric properties of Ca0.75Ti0.25X (X = S, Se) alloys. Chem Phys 2020. [DOI: 10.1016/j.chemphys.2020.110690] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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