Physical and electrical properties of Zr–Cu substituted strontium hexaferrite nanoparticles synthesized by co-precipitation method

Iqbal, Muhammad Javed; Ashiq, Muhammad Naeem

doi:10.1016/j.cej.2007.05.046

Cited by 226 publications

(87 citation statements)

References 30 publications

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“…Out of these five sites, 2a, 12k and 4f 2 are octahedral, 4f 1 is tetrahedral and 2b is a trigonal bipyramid site [13]. The number and spin of the 12 Fe 3?…”

Section: Structure Analysesmentioning

confidence: 99%

Temperature effect on the magnetic property and ferroelectricity in hexaferrite SrFe12O19

Qiang

Jin

et al. 2016

Appl. Phys. A

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We studied the temperature effect on magnetic and electrical properties in bulk SrFe 12 O 19 prepared by conventional ceramic technique. The jumping behavior of magnetization has been observed under the zero-fieldcooling mode, but disappeared under the field-cooled cooling mode. The spin moment of iron ions reorients below 50 K leading to the magnetic structure changes. Magnetic parameters, saturation magnetization (Ms) and coercivity field (Hc), show opposite tendency with temperature throughout the measuring range, which is mainly ascribed to the Fe 3? ions situated at 4f 2 and 2b sites. The curves of electrical polarization P vs temperature T under different external magnetic field indicate the existence of ferroelectricity and magnetoelectric coupling effect at low temperature, and the transition temperature T P is about 120 K.

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“…Out of these five sites, 2a, 12k and 4f 2 are octahedral, 4f 1 is tetrahedral and 2b is a trigonal bipyramid site [13]. The number and spin of the 12 Fe 3?…”

Section: Structure Analysesmentioning

confidence: 99%

Temperature effect on the magnetic property and ferroelectricity in hexaferrite SrFe12O19

Qiang

Jin

et al. 2016

Appl. Phys. A

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“…Large number of synthetic techniques have been developed to control the particle size, shape and the properties of the materials [4][5][6][7][8][9]. It is difficult to obtain ultrafine and monodispersed particles by the commercial ceramic method (solid-state reaction) which involves the firing of stoichiometric mixture of barium carbonate and iron oxide at high temperatures (about 1200 • C) followed by milling to break up the aggregates [10].…”

mentioning

confidence: 99%

Synthesis and Characterization of PEG-Sr Hexaferrite by Sol–Gel Conversion

Baykal

Durmuș

Toprak

et al. 2012

J Supercond Nov Magn

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Sr-M-type hexagonal ferrites have been prepared via a sol-gel route, and the effects of addition of different molecular weight polyethylene glycol (PEG) into the sol solutions on the static magnetic properties and particle morphology have been studied. Crystalline phases of the samples were determined by XRD analysis. FT-IR and TG analyses were used to prove the presence of PEG on SrFe 12 O 19 . The results showed that adding PEG with different molecular weight into the sol solutions affected the formation mechanism of SrFe 12 O 19 . Sr-M precursors prepared by various PEG types show different magnetic behaviors after precalcination at 150 • C. This discrepancy is explained by the formation of a different phase during the synthesis of SrM particles.

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“…It was further noticed that the fall of resistivity is rapid from temperature 25 to 75ºC, after that it decreases slowly until 175ºC and then becomes nearly constant. The decrease of resistivity is related to the decrease of porosity, since pores are nonconductive, increase of which causes to increase the resistivity of the material (Iqbal et al 2010). Moreover, the resistivity decreases with the decrease in porosity because the charge carriers on their way face less number of pores i.e., obstacles.…”

Section: Resultsmentioning

confidence: 99%

Composition, Temperature and Frequency Dependent Magnetic, Dielectric and Electrical Properties of Magnesium-Zinc Ferrites

Rahman

Sheak

Pervin

et al. 2012

J Bangladesh Acad Sci

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Physical and electrical properties of Zr–Cu substituted strontium hexaferrite nanoparticles synthesized by co-precipitation method

Cited by 226 publications

References 30 publications

Temperature effect on the magnetic property and ferroelectricity in hexaferrite SrFe12O19

Temperature effect on the magnetic property and ferroelectricity in hexaferrite SrFe12O19

Synthesis and Characterization of PEG-Sr Hexaferrite by Sol–Gel Conversion

Composition, Temperature and Frequency Dependent Magnetic, Dielectric and Electrical Properties of Magnesium-Zinc Ferrites

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