Effect of rare earth and transition metal La-Mn substitution on electrical properties of co-precipitated M-type Ba-ferrites nanoparticles
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摘要
In the current research work Ba_(1-x)La)xMn)yFe_(12-y)O_(19) hexa-ferrite nanoparticles of different compositions were synthesized using chemical co-precipitation technique. The structural properties were explored using X-ray diffractions(XRD), scanning electron microscopy(SEM) and Fourier transmission infrared spectroscopy(FTIR). XRD indexed pattern confirms the formation of M-type hexagonal phase. The crystallite size of synthesized samples ranges from 13 to 34 ± 2 nm. FTIR peaks observe also confirmed the presence of metaloxygen bond of the desired product. The position of peak at 467 cm~(-1) corresponds to A_2 u vibration for octahedral Fe(4+)-O and peak position E1 u corresponds to vibration of Fe(3+)O4 octahedral bonds. The band v_1 in range(677-559 cm~(-1)) and v_2 in frequency range(356-419 cm~(-1)) are associated to A and B sites.Dielectric properties of all compositions were measured with frequency. The dielectric constant, loss and tangent loss decrease from 26 to 9, 25 to 2 and 0.94 to 0.14, respectively with frequency. DC electrical resistivity is increased with dopant concentration increasing from 2.15 × 10~4 to 1.92 ×10~5 Ω·cm.
In the current research work Ba_(1-x)La)xMn)yFe_(12-y)O_(19) hexa-ferrite nanoparticles of different compositions were synthesized using chemical co-precipitation technique. The structural properties were explored using X-ray diffractions(XRD), scanning electron microscopy(SEM) and Fourier transmission infrared spectroscopy(FTIR). XRD indexed pattern confirms the formation of M-type hexagonal phase. The crystallite size of synthesized samples ranges from 13 to 34 ± 2 nm. FTIR peaks observe also confirmed the presence of metaloxygen bond of the desired product. The position of peak at 467 cm~(-1) corresponds to A_2 u vibration for octahedral Fe(4+)-O and peak position E1 u corresponds to vibration of Fe(3+)O4 octahedral bonds. The band v_1 in range(677-559 cm~(-1)) and v_2 in frequency range(356-419 cm~(-1)) are associated to A and B sites.Dielectric properties of all compositions were measured with frequency. The dielectric constant, loss and tangent loss decrease from 26 to 9, 25 to 2 and 0.94 to 0.14, respectively with frequency. DC electrical resistivity is increased with dopant concentration increasing from 2.15 × 10~4 to 1.92 ×10~5 Ω·cm.
In the current research work Ba_(1-x)La)xMn)yFe_(12-y)O_(19) hexa-ferrite nanoparticles of different compositions were synthesized using chemical co-precipitation technique. The structural properties were explored using X-ray diffractions(XRD), scanning electron microscopy(SEM) and Fourier transmission infrared spectroscopy(FTIR). XRD indexed pattern confirms the formation of M-type hexagonal phase. The crystallite size of synthesized samples ranges from 13 to 34 ± 2 nm. FTIR peaks observe also confirmed the presence of metaloxygen bond of the desired product. The position of peak at 467 cm~(-1) corresponds to A_2 u vibration for octahedral Fe(4+)-O and peak position E1 u corresponds to vibration of Fe(3+)O4 octahedral bonds. The band v_1 in range(677-559 cm~(-1)) and v_2 in frequency range(356-419 cm~(-1)) are associated to A and B sites.Dielectric properties of all compositions were measured with frequency. The dielectric constant, loss and tangent loss decrease from 26 to 9, 25 to 2 and 0.94 to 0.14, respectively with frequency. DC electrical resistivity is increased with dopant concentration increasing from 2.15 × 10~4 to 1.92 ×10~5 Ω·cm.
引文
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5.Wu JG,Fan Z,Xiao DQ,Zhu JG,Wang J.Multiferroic bismuth ferrite-based materials for multifunctional applications:ceramic bulks,thin films and nanostructures.Prog Mater Sci.2016;84:335.
6.Liu Y,Drew MGB,Liu Y,Wang JP,Zhang ML.Preparation and magnetic properties of La-Mn and La-Co doped barium hexaferrites prepared via an improved co-precipitation/molten salt method.2010;322:3342.
7.Kaur T,Kumar S,Bhat BH,Want B,Srivastava A.Effect on dielectric,magnetic,optical and structural properties of Nd-Co substituted barium hexaferrite nanoparticles.Appl Phys A.2015;119:1531.
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10.Rai BK,Mishra SR,Nguyen VV,Liu JP.Synthesis and characterization of high coercivity rare-earth ion doped Sr0.9RE0.1Fe10Al2O19(RE:Y,La,Ce,Pr,Nd,Sm,and Gd).J Alloys Compd.2013;550:198.
11.Li CJ,Wang JN.Electro spun SrRe0.6Fe11.4O19magnetic nanofibers:fabrication and characterization.Mater Lett.2010;64:586.
12.Le Breton JM,Lechevallier L,Wang JF,Harris R.Structural analysis of coprecipitated Sr1àxLaxFe12àxCoxO19powders.J Magn Magn Mater.2004;272e276:2214.
13.Iqbal MJ,Khan RA,Takeda S,Mizukami S,Miyazaki T.W-type hexaferrite nanoparticles:a consideration for microwave attenuation at wide frequency band of 0.5e10 GHz.J Alloys Compd.2011;509:7618.
14.Ashiq MN,Iqbal MJ,Najam-ul-Haq M,Gomez PH,Qureshi AM.Synthesis,magnetic and dielectric properties of Er-Ni doped Sr-hexaferrite nanomaterials for applications in high density recording media and microwave devices.J Magn Magn Mater.2012;324:15.
15.Feldmann C,Jungk HO.Polyol-mediated preparation of nanoscale oxide particles.Angew Chem Int Ed.2001;40:359.
16.Tadjarodi A,Rahimi R,Imani M,Kerdari H,Rabbani M.Synthesis,characterization and microwave absorbing properties of the novel ferrite nanocomposites.J Alloys Compd.2012;542:43.
17.Hutson AR.Hall effect studies of doped zinc oxide single crystals.Phys Rev.1957;108:222.
18.Heiland G,Mollwo E,St€ockmann F.Electronic processes in zinc oxide.Solid State Phys.1959;8:191.
19.Emtage PR.The physics of zinc oxide varistors.J Appl Phys.1977;48:4372.
20.Koops CG.On the dispersion of resistivity and dielectric constant of some semiconductors at audio frequencies.Phys Rev.1951;83:121.
21.Soman VV,Nanoti V,Kulkarni D.Dielectric and magnetic properties of Mg-Ti substituted barium hexaferrite.Ceram Int.2013;39:5713.
22.Katoch A,Borthakur B,Singh A,Singh T.Electrical and Dielectric Properties of M-Type Strontium Hexaferrites Doped with Gd-Rare Earth Ions.In:International Journal of Engineering Research and Technology(IJERT).ESRSA Publications;2013.
23.Singh A,Narang S,Singh K,Sharma P,Pandey O.Structural,AC conductivity and dielectric properties of Sr-La hexaferrite.Eur Phys J Appl Phys.2006;33:189.
24.Mitchell BS.An Introduction to Materials Engineering and Science for Chemical and Materials Engineers.Hoboken:John Wiley&Sons;2004.
25.Mahadule R,Arjunwadkar P,Mahabole M.Frequency and compositional variation of dielectric parameters for La substituted M-hexaferrite.IOSRJEN.2012;2:12.
26.Gul I,Pervaiz E.Comparative study of NiFe2àxAlxO4ferrite nanoparticles synthesized by chemical co-precipitation and sol-gel combustion techniques.Mater Res Bull.2012;47:1353.
27.Meyer B,Alves H,Hofmann D,Kriegseis W,Forster D,Bertram F,et al.Bound exciton and donor-acceptor pair recombinations in ZnO.Phys Status Solidi B.2004;241:227.
28.Ren T,Baker HR,Poduska KM.Optical absorption edge shifts in electrodeposited ZnO thin films.Thin Solid Films.2007;515:7976.
29.Sadri F,Nazari AM,Ghehreman A.A review on the cracking,baking and leaching processes of rare earth element concentrates.J Rare Earths.2017;35:739.
30.Han X,Wang YF,Hao HR,Guo RG,Hu YS,Jiang WQ.Ce1àxLaxOysolid solution prepared from mixed rare earth chloride for soot oxidation.J Rare Earths.2016;34:590.
2.Meng YY,He MH,Zeng Q,Jiao DL,Shukla S,Ramanujan R,et al.Synthesis of barium ferrite ultrafine powders by a sol-gel combustion method using glycine gels.J Alloys Compd.2014;583:220.
3.Smit J,Wijn HPJ,Luton GE.Ferrites:Physical Properties of Ferrimagnetic Oxides in Relation to Their Technical Applications.New York:Wiley;1959.
4.Wu JG,Wang J.Effects of SrRuO3buffer layer thickness on multiferroic(Bi0.90La0.10)(Fe0.95Mn0.05)O3thin films.J Appl Phys.2009;106,054115.
5.Wu JG,Fan Z,Xiao DQ,Zhu JG,Wang J.Multiferroic bismuth ferrite-based materials for multifunctional applications:ceramic bulks,thin films and nanostructures.Prog Mater Sci.2016;84:335.
6.Liu Y,Drew MGB,Liu Y,Wang JP,Zhang ML.Preparation and magnetic properties of La-Mn and La-Co doped barium hexaferrites prepared via an improved co-precipitation/molten salt method.2010;322:3342.
7.Kaur T,Kumar S,Bhat BH,Want B,Srivastava A.Effect on dielectric,magnetic,optical and structural properties of Nd-Co substituted barium hexaferrite nanoparticles.Appl Phys A.2015;119:1531.
8.Lechevallier L,Le Breton J,Morel A,Teillet J.Structural and magnetic properties of Sr1àxSmxFe12O19hexagonal ferrites synthesised by a ceramic process.J Alloys Compd.2003;359:310.
9.Thakur A,Singh RR,Barman PB.Synthesis and characterizations of Nd3tdoped SrFe12O19nanoparticles.Mater Chem Phys.2013;141:562.
10.Rai BK,Mishra SR,Nguyen VV,Liu JP.Synthesis and characterization of high coercivity rare-earth ion doped Sr0.9RE0.1Fe10Al2O19(RE:Y,La,Ce,Pr,Nd,Sm,and Gd).J Alloys Compd.2013;550:198.
11.Li CJ,Wang JN.Electro spun SrRe0.6Fe11.4O19magnetic nanofibers:fabrication and characterization.Mater Lett.2010;64:586.
12.Le Breton JM,Lechevallier L,Wang JF,Harris R.Structural analysis of coprecipitated Sr1àxLaxFe12àxCoxO19powders.J Magn Magn Mater.2004;272e276:2214.
13.Iqbal MJ,Khan RA,Takeda S,Mizukami S,Miyazaki T.W-type hexaferrite nanoparticles:a consideration for microwave attenuation at wide frequency band of 0.5e10 GHz.J Alloys Compd.2011;509:7618.
14.Ashiq MN,Iqbal MJ,Najam-ul-Haq M,Gomez PH,Qureshi AM.Synthesis,magnetic and dielectric properties of Er-Ni doped Sr-hexaferrite nanomaterials for applications in high density recording media and microwave devices.J Magn Magn Mater.2012;324:15.
15.Feldmann C,Jungk HO.Polyol-mediated preparation of nanoscale oxide particles.Angew Chem Int Ed.2001;40:359.
16.Tadjarodi A,Rahimi R,Imani M,Kerdari H,Rabbani M.Synthesis,characterization and microwave absorbing properties of the novel ferrite nanocomposites.J Alloys Compd.2012;542:43.
17.Hutson AR.Hall effect studies of doped zinc oxide single crystals.Phys Rev.1957;108:222.
18.Heiland G,Mollwo E,St€ockmann F.Electronic processes in zinc oxide.Solid State Phys.1959;8:191.
19.Emtage PR.The physics of zinc oxide varistors.J Appl Phys.1977;48:4372.
20.Koops CG.On the dispersion of resistivity and dielectric constant of some semiconductors at audio frequencies.Phys Rev.1951;83:121.
21.Soman VV,Nanoti V,Kulkarni D.Dielectric and magnetic properties of Mg-Ti substituted barium hexaferrite.Ceram Int.2013;39:5713.
22.Katoch A,Borthakur B,Singh A,Singh T.Electrical and Dielectric Properties of M-Type Strontium Hexaferrites Doped with Gd-Rare Earth Ions.In:International Journal of Engineering Research and Technology(IJERT).ESRSA Publications;2013.
23.Singh A,Narang S,Singh K,Sharma P,Pandey O.Structural,AC conductivity and dielectric properties of Sr-La hexaferrite.Eur Phys J Appl Phys.2006;33:189.
24.Mitchell BS.An Introduction to Materials Engineering and Science for Chemical and Materials Engineers.Hoboken:John Wiley&Sons;2004.
25.Mahadule R,Arjunwadkar P,Mahabole M.Frequency and compositional variation of dielectric parameters for La substituted M-hexaferrite.IOSRJEN.2012;2:12.
26.Gul I,Pervaiz E.Comparative study of NiFe2àxAlxO4ferrite nanoparticles synthesized by chemical co-precipitation and sol-gel combustion techniques.Mater Res Bull.2012;47:1353.
27.Meyer B,Alves H,Hofmann D,Kriegseis W,Forster D,Bertram F,et al.Bound exciton and donor-acceptor pair recombinations in ZnO.Phys Status Solidi B.2004;241:227.
28.Ren T,Baker HR,Poduska KM.Optical absorption edge shifts in electrodeposited ZnO thin films.Thin Solid Films.2007;515:7976.
29.Sadri F,Nazari AM,Ghehreman A.A review on the cracking,baking and leaching processes of rare earth element concentrates.J Rare Earths.2017;35:739.
30.Han X,Wang YF,Hao HR,Guo RG,Hu YS,Jiang WQ.Ce1àxLaxOysolid solution prepared from mixed rare earth chloride for soot oxidation.J Rare Earths.2016;34:590.