Tuning of magnetic property by lattice strain in lead substituted cobalt ferrite

Kumar, Ramesh; Singh, Rakesh K.; Zope, Mukesh Kumar; Kar, Manoranjan

doi:10.1016/j.mseb.2017.03.012

Cited by 34 publications

(2 citation statements)

References 38 publications

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“…The presence of these pronounced vibrational modes also indicates the existence of the spinel structure. 83,84 With an increase in the substitution concentration, a certain uniform monotonic shift towards lower frequencies is clearly recorded for all the modes without exception. This behavior is explained by changes associated with the distribution of ions between the tetrahedral and octahedral positions.…”

Section: Resultsmentioning

confidence: 85%

Fabrication of doped ferrites and exploration of their structure and magnetic behavior

et al. 2023

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Section: Resultsmentioning

confidence: 85%

Fabrication of doped ferrites and exploration of their structure and magnetic behavior

et al. 2023

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“…Strontium hexaferrite (SrFe 12 O 19 ) ceramics are currently being used as dense recording media, permanent magnets, magneto-optical instruments, etc [1][2][3][4]. The critical magnetic properties like high coercivity (H c ),…”

Section: Introductionmentioning

confidence: 99%

Structural, ferromagnetic, ferroelectric, and bio-medical behaviour of yttrium doped strontium hexaferrite (SrFe_12-xY_xO₁₉) nano materials, assisted with sol-gel cost effective technique

Kumar,

Singh,

Kumari

et al. 2023

Phys. Scr.

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Yttrium substituted strontium hexaferrite with X= (0.25-1.0), is synthesized using an economical sol-gel technique. The reflected planes in the XRD patterns justify that samples possessed hexagonal symmetry (P63/mmc space group). Crystallite size and strain calculations for SrFe12-xYxO19 samples were performed with a W-H plot. Lattice constants changes minutely but regularly with Y3+ composition. The morphological structure of the sample has been visualized from SEM micrographs. TEM, HRTEM and SAED has been performed for confirming the lattice fringe distance, grain size of nanoparticles (NPs) and diffraction planes. Grain size is found to be 44.15 nm and 37.27 nm for X=0.00 and X=1.0 composition of Y3+. Raman spectral pattern exhibited that all the peak of the synthesized sample is indexed to Raman vibration modes and strontium hexaferrite (SHF) structure. FTIR analysis supports the stretching of metal-oxygen bonding and is helpful in finding force constant and bond length of samples. The highest luminescent peaks is observed at 481 nm. The direct band gap (Eg) is found to decrease from 2.3 eV-1.93 eV with Y3+ concentration. With an increase of Y3+ concentration, Ms and Mr parameters decrease systematically while coercivity value increases drastically from 5983-6595 Oe, which is a novel works. The occupancy of Y3+ ions in SrFe12-xYxO19 lattice obstructs electrical leakage to generate remnant polarization (Pr) and coercive polarization (Pc) of values 25.45 μC/cm2 and 2.91 kV/cm respectively. Moreover, cytotoxicity assay reveals that at lower concentrations up to 250µg/ml the synthesized material SrFe12-xYxO19 for X=0.00 and X=1.0 promotes the growth of cell and hence represents non- toxic and biocompatible behavior with cell. Hence anticipation can be made that it may be used for biological and biomedical applications such as bone replacement, magnetic drug delivery, and coating on metal implants. Thus, improved physical properties of Y3+ doped SHF nanomaterials pave its way for promising applications.

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Crystal structure and magnetic properties study on barium hexaferrite of different average crystallite size

et al. 2021

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Tuning of magnetic property by lattice strain in lead substituted cobalt ferrite

Cited by 34 publications

References 38 publications

Fabrication of doped ferrites and exploration of their structure and magnetic behavior

Fabrication of doped ferrites and exploration of their structure and magnetic behavior

Structural, ferromagnetic, ferroelectric, and bio-medical behaviour of yttrium doped strontium hexaferrite (SrFe_12-xY_xO₁₉) nano materials, assisted with sol-gel cost effective technique

Crystal structure and magnetic properties study on barium hexaferrite of different average crystallite size

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Tuning of magnetic property by lattice strain in lead substituted cobalt ferrite

Cited by 34 publications

References 38 publications

Fabrication of doped ferrites and exploration of their structure and magnetic behavior

Fabrication of doped ferrites and exploration of their structure and magnetic behavior

Structural, ferromagnetic, ferroelectric, and bio-medical behaviour of yttrium doped strontium hexaferrite (SrFe12-xYxO19) nano materials, assisted with sol-gel cost effective technique

Crystal structure and magnetic properties study on barium hexaferrite of different average crystallite size

Contact Info

Product

Resources

About

Structural, ferromagnetic, ferroelectric, and bio-medical behaviour of yttrium doped strontium hexaferrite (SrFe_12-xY_xO₁₉) nano materials, assisted with sol-gel cost effective technique