Effect of Sm-substitution on structural, electrical and magnetic properties of BiFeO3

Pattanayak, Samita; Choudhary, R. N. P.; Das, Piyush R.

doi:10.1007/s13391-013-3050-1

Cited by 53 publications

(24 citation statements)

References 31 publications

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“…Multiferroic materials exhibit ferroic order parameters simultaneously, namely ferroelectricity, ferromagnetism and ferroelasticity, in the same phase [2] [3]. These materials have been widely studied in recent years because of their potential applications in new generations of memory devices, magnetic field sensors, etc.…”

Section: Introductionmentioning

confidence: 99%

“…Although BiFeO 3 (BFO) materials show potential in several applications, some of their drawbacks still need to be resolved, such as large dielectric loss and high leakage current, which are induced by oxygen vacancy, non-stoichiometry and valence fluctuation of Fe ions at room temperature [2]. However, because of the higher leakage current in the bulk BFO, it was difficult to measure the ferroelectric properties of BFO at room temperature.…”

Section: Introductionmentioning

confidence: 99%

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Study of the Structural and Electrical Properties of Cr-Doped BiFeO<sub>3</sub> Ceramic

Arafat¹,

Ibrahim²

2017

MSA

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Multiferroic BiFe 1−x Cr x O 3 (x = 0.2 and 0.4) ceramics were synthesized in a single phase. The effects of Cr 3+ substitution on the crystal structure, dielectric permittivity and leakage current were investigated. Preliminary X-ray structural studies revealed that the samples had a rhombohedral perovskite crystal structure. The dielectric constant ε' significantly increased while the dielectric loss tanδ was substantially decreased with the increase in Cr 3+ substitution.The temperature effect on the dielectric properties exhibited an anomaly corresponding to magneto-electric coupling in the samples and was shifted to lower temperatures with the increase in Cr 3+ substitution. The leakage current density also reduced in magnitude with the increase in the Cr 3+ substitution.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of the Structural and Electrical Properties of Cr-Doped BiFeO<sub>3</sub> Ceramic

Arafat¹,

Ibrahim²

2017

MSA

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“…5 For example, it was observed an increase of spontaneous magnetization and magnetoelectric coupling in samarium modified bismuth ferrite (i.e., Bi 1 x Sm x FeO 3 ). 6,7 Single-phase bulk BiFeO 3 exhibits a rhombohedral structure with space group R3c, where all ions are displaced along the (111) c direction of the ideal perovskite lattice and the oxygen octahedra surrounding the transition-metal cations are rotated alternately clockwise and counterclockwise about this (111) c direction. 8 The dielectric properties of pure BFO are caused by phonon mode softening and at higher temperatures by Maxwell-Wagner relaxation.…”

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confidence: 99%

Dielectric investigations of polycrystalline samarium bismuth ferrite ceramic

Palaimienė

Macutkevič

Karpinsky

et al. 2015

Applied Physics Letters

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Results of broadband dielectric investigations of samarium doped bismuth ferrite ceramics are presented in wide temperature range (20–800 K). At temperatures higher than 400 K, the dielectric properties of samarium bismuth ferrite ceramics are governed by Maxwell-Wagner relaxation and electrical conductivity. The DC conductivity increases and activation energy decreases with samarium concentration. In samarium doped bismuth ferrite, the ferroelectric phase transition temperature decreases with samarium concentration and finally no ferroelectric order is observed at x = 0.2. At lower temperatures, the dielectric properties of ferroelectric samarium doped bismuth ferrite are governed by ferroelectric domains dynamics. Ceramics with x = 0.2 exhibit the relaxor-like behaviour.

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“…As the value of concentration (x) increases, bulk resistance (R b ) increases which again indicates the decrease in conductivity with increase in concentration. Again, the decrease in R b with rise in temperature is normally observed in semiconductors [34]. Figure 9 shows the effect of frequency on the value of M 0 at selected temperature 350°C for different studied samples.…”

Section: Impedance Analysismentioning

confidence: 61%

Structural and electrical properties of BiFeO3–PbTiO3 system

Panda

Pattanayak²,

Choudhary

2015

J Mater Sci: Mater Electron

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The polycrystalline samples of lead titanatemodified bismuth ferrite [i.e., (BiFeO 3 ) 1-x ? (PbTiO 3 ) x with x = 0.0, 0.1, 0.2, 0.3] were synthesized by a hightemperature solid-state reaction route. The formation of the materials was confirmed through basic structural analysis using X-rays diffraction data collected at room temperature. Detailed studies of dielectric and impedance characteristics of the materials in a wide frequency (1 kHz-1 MHz) and temperature (30-500°C) ranges using complex impedance spectroscopic method have provided many new results. The frequency dependence of ac conductivity suggests that the samples obey Jonscher's universal power law. A strong corelation between the micro-structural and impedance parameters was observed. The frequency-temperature dependence of electric modulus and impedance parameters of the materials shows the presence of non-Debye type of relaxation.

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Effect of Sm-substitution on structural, electrical and magnetic properties of BiFeO3

Cited by 53 publications

References 31 publications

Study of the Structural and Electrical Properties of Cr-Doped BiFeO<sub>3</sub> Ceramic

Study of the Structural and Electrical Properties of Cr-Doped BiFeO<sub>3</sub> Ceramic

Dielectric investigations of polycrystalline samarium bismuth ferrite ceramic

Structural and electrical properties of BiFeO3–PbTiO3 system

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Effect of Sm-substitution on structural, electrical and magnetic properties of BiFeO3

Cited by 53 publications

References 31 publications

Study of the Structural and Electrical Properties of Cr-Doped BiFeO&lt;sub&gt;3&lt;/sub&gt; Ceramic

Study of the Structural and Electrical Properties of Cr-Doped BiFeO&lt;sub&gt;3&lt;/sub&gt; Ceramic

Dielectric investigations of polycrystalline samarium bismuth ferrite ceramic

Structural and electrical properties of BiFeO3–PbTiO3 system

Contact Info

Product

Resources

About

Study of the Structural and Electrical Properties of Cr-Doped BiFeO<sub>3</sub> Ceramic

Study of the Structural and Electrical Properties of Cr-Doped BiFeO<sub>3</sub> Ceramic