Rare earth based MgPm_(2)X_(4)(X=S,Se) spinel chalcogenides for spintronic and thermoelectric applications  

作　　者：Tariq M.Al-Daraghmeh Omar Zayed Ghulam M.Mustafa Taharh Zelai Bisma Younas Hind Albalawi S.Bouzgarrou Othman Hakami Q.Mahmood Khaild I.Hussein 

机构地区：[1]Basic Sciences Department,King Abdullah Ⅱ School of Engineering,Princess Sumaya University For Technology,P.O.Box 1438,Al-jubaiha,11941,Amman,Jordan [2]Department of Physics,Division of Science&Technology,University of Education,Lahore,Pakistan [3]Department of Physics,Faculty of Science,Jazan University Jazan,Saudi Arabia [4]Department of Physics,The University of Lahore,Lahore,Pakistan [5]Department of Physics,College of Sciences,Princess Nourah bint Abdulrahman University(PNU),P.O.Box 84428,Riyadh,11671,Saudi Arabia [6]Department of Physics,College of Science,Qassim University,Po.64,Buraidah,Saudi Arabia [7]Laboratoire de Microelectronique et Instrumentation(UR 03/13-04),Faculte des Sciences de Monastir,Avenue de I'Environnement 5000,Monastir,Tunisia [8]Department of Chemistry,Faculty of Science,Jazan University Jazan,Saudi Arabia [9]Basic&Applied Scientific Research Center,Department of Physics,College of Science,Imam Abdulrahman Bin Faisal University,P.O.Box 1982,Dammam 31441,Saudi Arabia [10]Department of Radiological Sciences,College of Applied Medical Sciences,King Khalid University,Abha,61421,Saudi Arabia

出　　处：《Journal of Rare Earths》2024年第8期1577-1585,I0006,共10页稀土学报（英文版）

基　　金：funded by the Princess Nourah bint Abdulrahman University Researchers Supporting Project(PNURSP2023R29);Princess Nourah bint Abdulrahman University,Riyadh,Saudi Arabia;the Deanship of Scientific Research at King Khalid University,SaudiArabia for funding this work through Large Groups Project(L.R.G.P2/431/44)。

摘　　要：In current report,the structural,magnetic,and thermoelectric properties of RE doped MgPm_(2)X_(4)(X=S,Se) spinels were investigated.The energy difference in ferromagnetic and antiferromagnetic states reveals the stability of MgPm_(2)(S/Se)_(4) in the ferromagnetic states.The co mputation of enthalpy of formation also ascertains thermodynamic stability of crystal structure.Spin-dependent band structure and density of states analysis reveal ferromagnetic semiconducting character showing different electronic behavior in both spin channels.The room temperature ferromagnetism,spin polarization and Curie temperature are estimated from exchange energies analysis.In addition,exchange constants(N_(0)α and N_(0)β),exchange energy Δ_(x)(pd),crystal ifeld energy,and double exchange mechanism were studied to explore the magnetic response.Likewise,the electrical conductivity,thermal conductivity,Seebeck co-efficient,and power factor show effect on electrons spin and their potential for thermoelectric devices.

关 键 词：Rare earth elements Spintronic applications Thermoelectric effects Exchange energies 

分 类 号：TB34[一般工业技术—材料科学与工程]