Structural and magnetic properties of yttrium iron garnet (YIG) and yttrium aluminum iron garnet (YAlG) nanoferrite via sol-gel synthesis

Musa, Makiyyu Abdullahi; Azis, Raba’ah Syahidah; Osman, Nurul Huda; Hassan, Jumiah; Zangina, Tasiu

doi:10.1016/j.rinp.2017.02.038

Cited by 91 publications

(21 citation statements)

References 28 publications

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“…Such increase in M s value is attributed to the occupation of substituent elements at the octahedral site. The substitution of nonmagnetic Al at Fe site leads to decrease in saturation magnetization and shifting of dielectric relaxation towards higher temperature . The co‐substitution of Al and Cr also gives rise to drastic reduction in saturation magnetization value and the ferrimagnetic T c .…”

Section: Introductionsupporting

confidence: 78%

“…The substitution of nonmagnetic Al at Fe site leads to decrease in saturation magnetization and shifting of dielectric relaxation towards higher temperature. 31,32 The co-substitution of Al and Cr also gives rise to drastic reduction in saturation magnetization value and the ferrimagnetic T c . 33,34 The Cr substitution at octahedral site is expected to induce interesting dielectric and magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

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Structural, magnetic and dielectric properties of Cr substituted yttrium iron garnets

Aakansha

Ravi

2018

J Am Ceram Soc

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Chromium substituted polycrystalline Yttrium Iron Garnets (Y3Fe5–xCrxO12 with x = 0 to 0.5) were prepared in single‐phase form with lattice constant in the range of 12.3775 Å to 12.3560 Å. All samples exhibit ferrimagnetic transition with transition temperature (Tc) in the range of 547 K for x = 0 to 494 K for x = 0.5. The saturation magnetization value at room temperature is found to increase with Cr concentration that is, from 24.8 to 26.6 emu/g and this is attributed to the preferential occupation of Cr3+ ions at octahedral site of Fe3+ ions. The frequency dependence of impedance data shows the relaxation and thermal activation of charge carriers across grains and grain boundaries. The complex impedance spectra were modeled by considering equivalent circuits having contributions from the resistance and constant phase element due to grains and grain boundaries and capacitance across grain boundaries. The dielectric constant is found to increase from 20 to 52 as the Cr concentration is increased and it is attributed to hopping of charge carriers across Fe2+–Fe3+ centers. The Arrhenius plots of relaxation time of charge carriers and conductivity show an anomaly in the vicinity of ferrimagnetic transition temperature and it highlights the presence of magneto‐electric coupling.

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Section: Introductionsupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Structural, magnetic and dielectric properties of Cr substituted yttrium iron garnets

Aakansha

Ravi

2018

J Am Ceram Soc

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“…Among various magnetic materials of collinear ordering yttrium iron garnet (YIG) is characterized by the best magneto-elecctrical and magneto-optical properties, which stand out this material for microwave applications [18]. YIG belongs to the class of magnetically ordered structures with cubic symmetry [19,20] and rather low loss [21], and is successfully used in a broad range of spintronics applications.…”

Section: Model Systemmentioning

confidence: 99%

Resonant spin wave excitation in magnetoplasmonic bilayers using short laser pulses

2019

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In magnetically ordered solids a static magnetic field can be generated by virtue of the transverse magneto-optical Kerr effect (TMOKE). Moreover, the latter was shown to be dramatically enhanced due to the optical excitation of surface plasmons in nanostructures with relatively small optical losses. In this paper we suggest a new method of resonant optical excitations in a prototypical bilayer composed of noble metal (Au) with grating and a ferromagnet thin film of yttrium iron garnet (YIG) via frequency comb. Based on magnetization dynamics simulations we show that for the frequency comb with the parameters, chosen in resonant with spin-wave excitations of YIG, TMOKE is drastically enhanced, hinting towards possible technological applications in the optical control of spintronics systems.

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“…Yttria-stabilized zirconium oxide is used in high temperature applications such as in thermal plasma sprays. Crystals of the yttriumiron-garnet (YIG) variety are essential to microwave communication equipment [6][7][8][9]. Vijayalakshmi (2001), described a process for the recovery of rare earths from xenotime concentrate by digestion with sulfuric acid.…”

Section: Introductionmentioning

confidence: 99%

Recovery of Yttrium and Dysprosium from the Rare Earth Concentrate, Southwestern Sinai, Egypt

Fawzy

El-Hady

2018

Arab Journal of Nuclear Sciences and Applications

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Structural and magnetic properties of yttrium iron garnet (YIG) and yttrium aluminum iron garnet (YAlG) nanoferrite via sol-gel synthesis

Cited by 91 publications

References 28 publications

Structural, magnetic and dielectric properties of Cr substituted yttrium iron garnets

Structural, magnetic and dielectric properties of Cr substituted yttrium iron garnets

Resonant spin wave excitation in magnetoplasmonic bilayers using short laser pulses

Recovery of Yttrium and Dysprosium from the Rare Earth Concentrate, Southwestern Sinai, Egypt

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