Effect of cation distribution on structural and magnetic properties of Dy substituted magnesium ferrite

Bamzai, K. K.; Kour, Gurbinder; Kaur, Balwinder; Kulkarni, S.D.

doi:10.1016/j.jmmm.2012.09.013

Cited by 86 publications

(14 citation statements)

References 28 publications

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“…Moreover, the emission intensities increases with increase in Dy 3+ concentration and similar observations have also been reported for Dy 3+ by Chemingui et al . The magnetic moments of Dy 3+ are mainly due to the 4 f electrons and the ordering of their moments occurs at very low temperatures . The value of Ms obtained for TCP is negligible, whereas saturation magnetization indicated an enhancing trend as a function of Dy 3+ content and a value of 0.424 emu/g is observed for 4DyCP.…”

Section: Discussionsupporting

confidence: 85%

Structural insights in Dy³⁺‐doped β‐Tricalcium phosphate and its multimodal imaging characteristics

et al. 2017

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A series of Dysprosium (Dy3+) doped β‐Tricalcium phosphate [β‐TCP, β‐Ca3(PO4)2] were developed for applications in magnetic resonance imaging (MRI) and computed tomography (CT). Characterization studies confirmed the Dy3+ occupancy at Ca2+(1), Ca2+(2), and Ca2+(3) lattice sites of β‐Ca3(PO4)2 and its substitution limit was determined as 4.35 mol%. The transitions from the 6H15/2 ground state to various excited energy levels is validated by the characteristic absorption peaks of Dy3+. Luminescence studies inferred two intense bands at 480 and 572 nm due to 4F9/2→6H15/2 (blue) and 4F9/2→6H13/2 (yellow) transitions of Dy3+. The paramagnetic and nontoxic behavior of Dy3+‐doped β‐Ca3(PO4)2 were confirmed from magnetic and MTT tests, respectively. Dy3+ in the host induces a high X‐ray absorption ability for X‐ray computed tomography (CT) and showed efficient contrast T2‐enhancing modality. Thus the proposed system could be used as a promising probe for multimodality with optical imaging, computed tomography and magnetic resonance imaging.

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Section: Discussionsupporting

confidence: 85%

Structural insights in Dy³⁺‐doped β‐Tricalcium phosphate and its multimodal imaging characteristics

et al. 2017

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“…The M s values of the MgFe 2 O 4 samples at room temperature are given in Table . The saturation magnetization of the samples was enhanced significantly in comparison with that of bulk MgFe 2 O 4 (at room temperature M s bulk = 27 emu g −1 ) and those reported for the MgFe 2 O 4 nanoparticles prepared by other methods including sol–gel route, thermal decomposition, combustion, hydrothermal, and solid state reaction technique …”

Section: Resultsmentioning

confidence: 50%

Cation Distribution Assisted Tuning of Magnetization in Nanosized Magnesium Ferrite

Thanh

Loan

Duong

et al. 2017

Physica Status Solidi (a)

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The MgFe 2 O 4 nanoparticles are synthesized by combustion method and annealed at different temperatures from 500 to 1000 C. Magnetic properties, morphology, valence states of iron, crystal structure, and microstructure of the samples are investigated systematically by vibrating sample magnetometer, field emission scanning electron microscope, transmission electron microscopy, X-ray absorption spectroscopy, and synchrotron X-ray diffraction. Cation distribution is determined from synchrotron X-ray diffraction data using Rietveld refinement combined with extended X-ray absorption fine structure spectroscopy. The results indicates that all the samples are phasepure with crystallite size ranging from 11 to 41 nm. By adjusting the annealing temperature, cation distribution and particle size can be changed, and consequently leading to the change in structure and magnetic properties. The saturation magnetization of the samples are enhanced significantly compared to that of the bulk material. The variation of magnetic properties is discussed based on cation distribution, particle size, valence state, surface effect, and spin canting.

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“…Here it will be even more interesting to study the change in properties of MgFe 2 O 4 when doped with other metals. Earlier as per the literature Cr [3,12], Gd [13], Dy [14], Sm [15], Co [16], NiACo [17], Li [18], CoACr [19], Cd [20], Cu [21], Pr [22], Tb [23], Ca [24], etc. have been used as dopants in ferrites and their properties have been explored.…”

Section: Introductionmentioning

confidence: 94%

Tailoring the super-paramagnetic nature of MgFe 2 O 4 nanoparticles by In 3+ incorporation

Naik

Salker

2016

Materials Science and Engineering: B

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Effect of cation distribution on structural and magnetic properties of Dy substituted magnesium ferrite

Cited by 86 publications

References 28 publications

Structural insights in Dy³⁺‐doped β‐Tricalcium phosphate and its multimodal imaging characteristics

Structural insights in Dy³⁺‐doped β‐Tricalcium phosphate and its multimodal imaging characteristics

Cation Distribution Assisted Tuning of Magnetization in Nanosized Magnesium Ferrite

Tailoring the super-paramagnetic nature of MgFe 2 O 4 nanoparticles by In 3+ incorporation

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Effect of cation distribution on structural and magnetic properties of Dy substituted magnesium ferrite

Cited by 86 publications

References 28 publications

Structural insights in Dy3+‐doped β‐Tricalcium phosphate and its multimodal imaging characteristics

Structural insights in Dy3+‐doped β‐Tricalcium phosphate and its multimodal imaging characteristics

Cation Distribution Assisted Tuning of Magnetization in Nanosized Magnesium Ferrite

Tailoring the super-paramagnetic nature of MgFe 2 O 4 nanoparticles by In 3+ incorporation

Contact Info

Product

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About

Structural insights in Dy³⁺‐doped β‐Tricalcium phosphate and its multimodal imaging characteristics

Structural insights in Dy³⁺‐doped β‐Tricalcium phosphate and its multimodal imaging characteristics