Synthesis, characterization and microwave properties of strontium hexaferrite thin films prepared by chemical bath deposition

Ruikar, Deepti V.; Kashid, P.B.; Patil, Vishwanath R.; Puri, Vijaya

doi:10.1016/j.apsusc.2012.11.031

Cited by 6 publications

(3 citation statements)

References 15 publications

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“…The dielectric constant also increases with increasing Ni dopants. It should be mentioned that within our model and approximations we would also observe enhancement of the magnetization M and magnetic phase transition temperature T C by Co 2+ ion doping and their decrease by Mn 3+ doping as reported experimentally by [12,[48][49][50], respectively.…”

Section: Numerical Results and Discussionsupporting

confidence: 79%

“…Let us emphasize that, recently, Co 2+ -, Ni 2+ -, or Mn 3+ -doped SFO NPs at the Fe site are also studied [12,13,17,31,48,49]. An increase in the magnetization is reported by Liu et al [48] and Thanh et al [49] and of the Curie temperature T C by Ruikar et al [12] with increasing Co dopants. Irshad et al [17] observed that the FE polarization P is increased and the optical band gap E g is reduced by Ni doping.…”

Section: Numerical Results and Discussionmentioning

confidence: 94%

“…Such substitutions induce distinct modifications in the magnetic and electric characteristics of SFO owing to the resultant strain effects. Numerous studies have investigated the magnetic properties of both pure and ion doped SFO, whether in bulk form or as nanoparticles (NPs) [4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Theoretical Study of Electric, Dielectric, and Optical Properties in Ion Doped Multiferroic SrFe12O19 Nanoparticles

Apostolov,

Apostolova,

Wesselinowa

2024

Materials

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Electric, dielectric, and optical (band gap) properties of pure multiferroic as well as La- and Ni-doped SrFe12O19 (SFO) (at different sites) are investigated using a microscopic model and Green’s function technique. The concentration dependence of the polarization P is considered for substitution of rare earths ions on the Sr sites. For a small La ion doping concentration, x = 0.1, La-doped SFO is ferroelectric, whereas for a larger doping concentration, for example x = 0.5, it is antiferroelectric. The real part of the dielectric constant ϵ increases with an increasing magnetic field h. ϵ decreases with an increasing frequency and La dopants. Therefore, La-doped SFO is suitable for microwave application with a low dielectric constant. The magnetic properties of pure SFO NPs are also studied. Ni doping at the Fe site of SFO leads to enhanced ferroelectric polarization and dielectric constant. The band gap decreases or increases by substitution of Ni or In ions on the Fe site, respectively. The results reveal that the tuned band gap of Ni-doped SFO makes it a crucial candidate for optoelectronic and solid oxide fuel cell applications.

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Section: Numerical Results and Discussionsupporting

confidence: 79%