Enhanced magnetic and dielectric properties of doped Co–Zn ferrite nanoparticles by virtue of  Cr 3+ role

Faculty Science Year: 2019
Type of Publication: ZU Hosted Pages:
Authors:
Mohammed Ahmed Abdu Abdullah
Journal: Journal of Materials Science: Materials in Electronics Springer Volume:
Keywords : Enhanced magnetic and dielectric properties of doped Co–Zn    
Abstract:
Chromiumdsubstituteddcobaltdzincdd(Co 0.8dfdx Zn 0.2 Cr x Fe 2 O ;d(0didxi0.1;dstepd0.02),dreferreddtodCo-Zn-Cr)dnanoferritedmaterialsdweredsynthesizeddbydcitratednitratedcombustiondmethod.dThedefectdofddCr 4 3+ dopantdondthedcrystaldstructure,dmagneticd properties,ddielectricdproperties,delectricaldtransportdanddimpedancedanalysisdofdCo–Zndnanoferritesdwasdpredestined.dThed cubicdspineldphasedformationdwithoutdanydimpuritydphasedfordCo–Cr–ZndnanoferritesdwasdassureddbydXRD,dFTIRdandd HRTEMdanalysis.dMagneticdparametersddisplayeddadpeculiarddemeanordasdadfunctiondofdCrdcontent,dbaseddondthedcrystallited sizedimpact.dDielectricdphenomenadversusdfrequencydanddtemperaturedwereddiscusseddrelyingdondchargedcarriersd(electronsd anddholes)dhoppingdbetweenddiversedions.dComplexdimpedancedanalysisdrevealeddthedentitydofdelectricaldrelaxationsdindthed investigateddsamplesdbesidesdthedpredominantdofdgraindboundariesdcontributionsdtodthedconductiondprocess.dAddistinctived attitudedforddielectricdparametersdwasdobtaineddwithdCrddopant,dregardingdthedcation–aniondanddcation–cationdbonddlength.d ThednanoferriteddCo 0.72 Zn 0.2 Cr 0.08 Fe 2 O dhasdthedoptimumdmagneticdandddielectricdproperties,dwhichdquali esditdfordrecordingd mediadanddhighdfrequencyddevices. 4
    
     
 
       

Author Related Publications

  • Mohammed Ahmed Abdu Abdullah, "The structure, correlated vibrations, optical parameters and metallization criterion of Mn–Zn–Cr nanoferrites", Springer, 2021 More
  • Mohammed Ahmed Abdu Abdullah, "Physical properties of Al-doped cobalt nanoferrite prepared by citrate–nitrate auto combustion method", Springer, 2021 More
  • Mohammed Ahmed Abdu Abdullah, "Enhancing the magnetization, dielectric loss and photocatalytic activity of Co-Cu ferrite nanoparticles via the substitution of rare earth ions", ELSEVIER, 2021 More
  • Mohammed Ahmed Abdu Abdullah, "Covalency and Racah parameters of Fe3+ in Mn–Zn–Cr nanoferrites", ELSEVIER, 2021 More
  • Mohammed Ahmed Abdu Abdullah, "Effect of iron oxide on the structural and optical properties of alumino-borate glasses", ELSEVIER, 2020 More

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  • Nabil Mohamed Mohamed Hasana, "Elemental Analysis of Egyption Phosphate Fertilizer Components Samples by TGA, DTA and IR Methods", www.iosrjournals.org, 2013 More
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  • Hesham Mohamed Zaki Mostafa, "Magnesium-Zinc Ferrite Nanoparticles: Effect of Copper Doping on the Structural, Electrical and Magnetic Properties,", American Scientific Publishers, 2013 More
  • Abdullah Fathi Aly Saad, "The track nanotechnology", Radiation Measurements (Elsevier Science), Vol. 44, (2009) 1109- 1113.., 2009 More
  • Salwa Fahim Ibrahim Mansour, "Composition dependence of discontinuous magnetization in Li- Ti ferrites", J.Phys. D Appl., 1993 More
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