Domain wall structure of weak ferromagnets according to Raman

Kuzmenko, A. P.; Abakumov, P. V.; Dobromyslov, M. B.

doi:10.1016/j.jmmm.2011.11.008

Cited by 12 publications

(4 citation statements)

References 3 publications

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“…The band assigned at 1302 cm −1 is due to the vibration of magnetic Fe 3+ ions, which are in good agreement with the literature‐reported YFO samples. [ 6,25 ] Here the assigned Raman modes are well reliable with previous literature reported on YFO orthorhombic structure [ 7,32 ]…”

Section: Resultssupporting

confidence: 88%

“…The band assigned at 1302 cm À1 is due to the vibration of magnetic Fe 3þ ions, which are in good agreement with the literature-reported YFO samples. [6,25] Here the assigned Raman modes are well reliable with previous literature reported on YFO orthorhombic structure [7,32] Figure 6 displays the XRD pattern of YFO powder samples with different crystallite sizes. These patterns confirm the existence of a single-phase nature without any impurity phases (pyrochlore phase).…”

Section: Resultssupporting

confidence: 87%

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Grain Size‐Dependent Structural, Optical, Dielectric, and Magnetic Properties of YFeO₃ Nanomaterials Obtained by the Sol–Gel Technique Using Tartaric Acid as a Chelating Agent

Venkatrao

Reddy

Kandula

et al. 2022

Physica Status Solidi (b)

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This article reports the structural, optical, dielectric, and magnetic properties of yttrium orthoferrite (YFeO3) nanomaterials with different crystallite sizes derived from the sol–gel technique using tartaric acid as a complex agent. Different crystallite sizes (ranging from 0.4 to 2.11 μm) of YFeO3 (YFO) are fabricated by altering the sintering temperatures (in the range of 1173–1623 K) for the same duration (5 h). Rietveld refinements suggest that the different crystallite sizes of YFO exhibit a pure orthorhombic perovskite structure with the Pmna space group. It is observed that the grain size of the material increased with increasing sintering temperature. The highest magnetization value (5.078 emu g−1) is observed for the 0.89 μm size of YFO. A decrease in the optical bandgap of YFO material is observed with an increase in crystallite size. In conclusion, the optimized crystallite size is 0.89 μm for achieving the highest magnetization value of the YFO material synthesized by the sol–gel technique using tartaric acid as a chelating agent.

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Section: Resultssupporting

confidence: 88%

Section: Resultssupporting

confidence: 87%

Grain Size‐Dependent Structural, Optical, Dielectric, and Magnetic Properties of YFeO₃ Nanomaterials Obtained by the Sol–Gel Technique Using Tartaric Acid as a Chelating Agent

Venkatrao

Reddy

Kandula

et al. 2022

Physica Status Solidi (b)

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“…Apart from these bands, the vibration of magnetic Fe 3+ ion was also observed at ∼1300 cm −1 , and this band is good agreement with earlier reported of YFO sample. 8,9,40,41 Figure 4 shows the room temperature magnetization hysteresis (M-H) loops of YFO, YFO125, YFO25 and YFO50 with an applied field up to 1.5 T. The magnetic characteristics, such as coercivity (H c ), magnetization (M s ), and remnant magnetization (M r ), have been determined separately for each sample using the appropriate M-H loop. The M-H hysteresis data from −0.1 kOe to + 0.1 kOe was inserted in their respective graphs for clear visibility of Mr and Hc points.…”

Section: Resultsmentioning

confidence: 99%

Structural, Optical and Magnetic Properties of (1−x) YFeO₃ + (x) Sr₂Bi₄Ti₅O₁₈ (where 0 ≤ x ≥ 0.005) Nanomaterials

Venkatadri,

Zarena

2023

ECS J. Solid State Sci. Technol.

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Continuous efforts are being made on YFeO3 (YFO) nanomaterial to improve the magnetization value in different ways for photocatalysis and magneto-optical application point of view because of low energy bandgap (1.8-2.8 eV). In this regard, we made solid solutions with Sr2Bi4Ti5O18 (SBT) nanomaterial in an effort to increase the magnetization value of YFO nanomaterial. Here prepared the (1-x) YFO + x SBT (where x = 0, 0.00125, 0. 0025, and 0.005) nanomaterials via sol-gel route, and thus obtained individually powders were calcined at 1050 °C/3h. The single phase of YFO without any unreacted or impurity phases were observed up to x = 0.25 mol% via X-ray diffraction studies. Calculated average crystallite size as well as dislocation density suggesting that the improvement of crystalline nature YFO sample with an increase of SBT content in YFO. The improved magnetization value (4.121 emu/g), which is 1.3 times higher than that of YFO (3.188 emu/g), for the x= 0.25 mol % SBT in YFO was observed, however their coercivity (39.4 Oe) is almost similar for both samples. We draw the conclusion from this analysis that SBT in YFO (x=0.25 mol%) will make promising candidates for various magnetic applications.

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“…The peaks at 217, 610, and 1062 cm −1 can be attributed to Fe 2 O 3 , whereas the peaks at 276 and 326 cm −1 can be explained by the octahedral oxygen environment of the magnetic ions of Fe 3+ . 23,27) The peak at 1346 cm −1 , which was equally close to both cubic YIG and YFeO 3 (Fe 2 O 3 ), can be assigned to impurities. The present Raman spectra differed from those for amorphous garnets.…”

Section: Single-crystal Samplesmentioning

confidence: 99%

Structural evolution of Y₃Fe₅O₁₂induced by shock compression

Kishimura

Matsumoto

2017

Jpn. J. Appl. Phys.

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Shock-recovery experiments on both powder and single-crystal samples of Y3Fe5O12 (YIG) are performed by flyer impact. The recovered samples are characterized by X-ray diffraction and Raman spectroscopy. In previous static compression studies, a phase transition from cubic YIG to amorphous YIG has been observed under a pressure of 50 GPa at ambient temperature. During the shock compression of the powder sample, the cubic structure of YIG is transformed to yttrium iron perovskite and hematite. The Raman spectra obtained after the shock compression of single-crystal YIG are not similar to the spectrum for amorphous garnet. The peaks in the Raman spectra can be attributed to yttrium iron perovskite and hematite. The shock-induced heat contributes to the difference in phase transition compared with the results for static compression experiments.

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Domain wall structure of weak ferromagnets according to Raman

Cited by 12 publications

References 3 publications

Grain Size‐Dependent Structural, Optical, Dielectric, and Magnetic Properties of YFeO₃ Nanomaterials Obtained by the Sol–Gel Technique Using Tartaric Acid as a Chelating Agent

Grain Size‐Dependent Structural, Optical, Dielectric, and Magnetic Properties of YFeO₃ Nanomaterials Obtained by the Sol–Gel Technique Using Tartaric Acid as a Chelating Agent

Structural, Optical and Magnetic Properties of (1−x) YFeO₃ + (x) Sr₂Bi₄Ti₅O₁₈ (where 0 ≤ x ≥ 0.005) Nanomaterials

Structural evolution of Y₃Fe₅O₁₂induced by shock compression

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Domain wall structure of weak ferromagnets according to Raman

Cited by 12 publications

References 3 publications

Grain Size‐Dependent Structural, Optical, Dielectric, and Magnetic Properties of YFeO3 Nanomaterials Obtained by the Sol–Gel Technique Using Tartaric Acid as a Chelating Agent

Grain Size‐Dependent Structural, Optical, Dielectric, and Magnetic Properties of YFeO3 Nanomaterials Obtained by the Sol–Gel Technique Using Tartaric Acid as a Chelating Agent

Structural, Optical and Magnetic Properties of (1−x) YFeO3 + (x) Sr2Bi4Ti5O18 (where 0 ≤ x ≥ 0.005) Nanomaterials

Structural evolution of Y3Fe5O12induced by shock compression

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Product

Resources

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Grain Size‐Dependent Structural, Optical, Dielectric, and Magnetic Properties of YFeO₃ Nanomaterials Obtained by the Sol–Gel Technique Using Tartaric Acid as a Chelating Agent

Grain Size‐Dependent Structural, Optical, Dielectric, and Magnetic Properties of YFeO₃ Nanomaterials Obtained by the Sol–Gel Technique Using Tartaric Acid as a Chelating Agent

Structural, Optical and Magnetic Properties of (1−x) YFeO₃ + (x) Sr₂Bi₄Ti₅O₁₈ (where 0 ≤ x ≥ 0.005) Nanomaterials

Structural evolution of Y₃Fe₅O₁₂induced by shock compression