Effects of Nd, Er Doping on the Structure and Magnetic Properties of YFeO3

Song, Hongcheng; Jiang, Guojian

doi:10.1007/s10948-017-4451-4

Cited by 15 publications

(3 citation statements)

References 26 publications

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“…Similar AF behavior was observed for samples doped with low Bi 3+ contents (x ≤ 0.2), concluding that the substitution of Y 3+ by Bi 3+ cations did not promote important structural distortions which could modify the magnetic interactions. However, at low bismuth levels, it can be observed that a decrease of the specific magnetization at 18 kOe, with the increase of bismuth content, adscribed to the structure distortion resulting in the modification in Fe-O-Fe bond angle and octahedral tilt [13,20]. For x = 0.3 sample, an interesting modulation of magnetic order by the replacement of the diamagnetic cation Y 3+ by the diamagnetic Bi 3+ was observed.…”

Section: Resultsmentioning

confidence: 99%

“…It presents a magnetic transition at the Neel temperature of ~640 K [11,12]. Magnetic ordering is related to three types of magnetic interactions in atoms bonds: Y-Y, Y-Fe and Fe-Fe where Fe-O-Fe super-exchange interaction is the main source of the weak ferromagnetic behavior as well as the canting of magnetic moments of Fe 3+ due to the Dzyaloshinskii-Moriya (DM) interaction [10,13]. Further, centrosymmetric structures are not ferroelectric in nature, however distortions in the structure can modify it [14].…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Multiferroic Properties of YFeO3 by Doping with Bi3+

et al. 2019

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Tthe present work studied the cationic substitution of Y3+ by Bi3+ on the crystal structure of orthorhombic YFeO3 and its effect over magnetic, dielectric and electric properties of multiferroic yttrium orthoferrite. Stoichiometric mixtures of Y2O3, Fe2O3 and Bi2O3 were mixed and milled for 5 h using a ball to powder weight ratio of 10:1 by high-energy ball milling. The obtained powders were pressed at 1500 MPa and sintered at 700 °C for 2 h. The test samples were characterized at room temperature by X-ray diffraction (XRD), vibrating sample magnetometer (VSM), scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDS) and impedance spectroscopy (IS). The X-ray diffraction patterns disclosed a maximum solubility of 30 % mol. of Bi3+ into the orthorhombic YFeO3. For higher concentrations, a transformation from orthorhombic to garnet structure was produced, obtaining partially Y3Fe5O12 phase. The substitution of Bi3+ in Y3+ sites promoted a distortion into the orthorhombic structure and modified Fe-O-Fe angles and octahedral tilt. In addition, it promoted a ferromagnetic (FM) order, which was attributed to both the crystal distortion and Dzyaloshinskii-Moriya interaction. For doped samples, an increase in real permittivity values was observed, and reduced with the increase of frequency. This in good agreement with the Maxwell-Wagner effect.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced Multiferroic Properties of YFeO3 by Doping with Bi3+

et al. 2019

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“…Although there are many studies available for substitution of various ions on the Y/Fe site [ 29 , 30 , 31 ] or both the Y and Fe site [ 32 , 33 ] of YFO, the local electronic structure of Fe site Mn-doped YFO has rarely been investigated. The local electrical information of the sample is very important data for its applicability in practical use.…”

Section: Introductionmentioning

confidence: 99%

X-ray Absorption Spectroscopy Study of Iron Site Manganese Substituted Yttrium Orthoferrite

Gholam

Wang

2022

Molecules

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In this work, manganese (Mn)-doped YFeO3, i.e., YFMxO powders with 0 ≤ x ≤ 0.1, was synthesized by a hydrothermal method to study the influences of doping on its structural, morphological, optical, magnetic, and local electrical properties. The experimental results show that all the samples exhibit an orthorhombic structure with space group Pnma. Refined structure parameters are presented. Morphology images show the shape evolution from layered to multilayered with increasing Mn content. Infrared spectra reveal the characteristic vibrations of the obtained YFMxO samples. From the magnetic study, an increased magnetic moment in the range of 0 ≤ x ≤ 0.075 is observed. The Fe and Y K-edge local structure studies indicate that the valency of Fe and Y is mainly found in the trivalent state, which also indicates that the substitution of Mn ions not only affects the nearest neighbor atomic shell of Fe but also affects the nearest neighbor’s local structure of Y atoms. Our results show that the addition of Mn exhibits an evident influence on the local structural and magnetic properties.

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