Electrical properties of La0.7Ba0.297Ca0.003MnO3 obtained by low temperature sol-gel synthesis

Winarsih, Suci; Kurniawan, Budhy; Imaduddin, Agung; Manaf, Azwar

doi:10.1063/1.4991148

Cited by 3 publications

(3 citation statements)

References 15 publications

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“…The value of χ 2 indicates that the fits between the observed and calculated patterns are relatively acceptable. The obtained lattice parameters for x = 0 well agree with the report by S. Winarsih et al [10] . Evidently, the lattice parameter c slightly decreased because of Fe substitution, which led to a slight decrease in the unit cell volume from 358.846 Å 3 (x = 0) to 358.542 Å 3 (x = 0.02).…”

Section: Resultssupporting

confidence: 91%

Effect of Fe3+ Partial Substitution at Mn-Site on Electroresistance Behaviour in La0.7Ba0.3Mn1-xFexO3 (x = 0 and 0.02) Manganites

Sazali

Ibrahim

Mohamed

et al. 2021

SSP

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La0.7Ba0.3Mn1-xFexO3 (x = 0 and 0.02) were prepared by using solid state synthesis method to investigate the effect of Fe3+ substitution at Mn-site on electrical behaviour and structural properties. An analysis of X-ray diffraction, XRD data using refinement method shown both x = 0 and x = 0.02 samples were in single phased and crystallized in rhombohedral structural with Pnma space group. From ρ vs T curves shown resistivity decreased under increased of applied current of 10 mA to 20 mA for both samples in the temperature range of 20 K-300 K. The larger electroresistance, ER effect observed for x = 0.02 in temperature range of 20 K – 180 K compared to x = 0 sample is suggested due to the development of filamentary conduction path under increased of applied current. It is suggested that Fe substitution enhanced magnetic inhomogeneity which contribute to the growth of formation of conductive path under increased of applied current, lead to increase of ER effect. In the temperature range of 180 K – 300 K, the observed decreased in ER for Fe substituted sample (x = 0.02) is suggested due to the increased of scattering effect and reduction of available hopping site in metallic region and insulating region, respectively. Restriction in the movement of charge carrier had weakened the ER effect for Fe substituted sample. The observed ER effect indicates the compound has a potential for application such as for non-volatile memory elements.

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Section: Resultssupporting

confidence: 91%

Effect of Fe3+ Partial Substitution at Mn-Site on Electroresistance Behaviour in La0.7Ba0.3Mn1-xFexO3 (x = 0 and 0.02) Manganites

Sazali

Ibrahim

Mohamed

et al. 2021

SSP

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“…Actually, the REMnO 3 has an orthorhombic distortion and after substitution into specific ratio (RE 1−x AE x MnO 3 ), the distortion transforms to the rhombohedral one which is better than the orthorhombic in structural, electrical and magnetic properties [2,3]. These materials show many phenomenon, such as colossal magnetoresistance CMR [2] and magneto caloric effect MCE [4], which recently is massively attractive in technical field and have potential applications in solid oxide fuel cells [5], magnetic sensors [6], spintronic [6], biomedical field [3] and magnetic refrigeration technology [4]. The MR is defined as changing the resistance (resistivity) in the presence of applied magnetic field, and its percentage is obtained by equation [1] where R H and R 0 are the resistance (resistivity) in the presence and absence of magnetic field, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…There are several methods, such as milling [16], sol-gel [4], solid state reaction [8] and combustion [3], through which manganites are prepared. These routes have some drawbacks such as complex procedures, long reaction time and very high temperatures requirement.…”

Section: Introductionmentioning

confidence: 99%

Magnetoresistance temperature dependence of LSMO and LBMO perovskite manganites

2018

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La 0.7 Sr 0.3 MnO 3 (LSMO) and La 0. 7 Ba 0.3 MnO 3 (LBMO) Polycrystalline manganite nanoparticles were prepared by combustion method using glycine fuel. The ignition process was done at 360 °C and 330 °C for LSMO and LBMO, respectively. Both of the samples have rhombohedral structure using XRD analysis. The reduction is observed in electrical resistivity when external magnetic field is applied during the decrease in temperature from 300 to 89 °K, which is due to the tunneling between particles. The magnetoresistance (MR) of samples was measured in this range of temperature in both the presence and absence of a magnetic field of about 10 kG. The colossal role of a kind of extrinsic MR which is 19% and 22% for LSMO and LBMO, respectively, has been investigated in this research. The metal-insulator transition temperature of 200 °K is recorded for LBMO.

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Effect of Low Doped Calcium on the Magnetic Properties of La_0.7Ba_0.297Ca_0.003MnO₃ for Magnetocaloric Application

Kurniawan

Winarsih

Komala

2018

J. Phys.: Conf. Ser.

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Effect of low doped calcium concentration to the magnetic properties of La0.7Ba0.3MnO3 material has been reported in this paper. This compound was chosen because it has high potential to be applied in electronic devices. The most intensive research in the last decade is about magnetocaloric effect (MCE). Magnetic refrigeration will replace Freon R12 that is used in conventional refrigeration with magnetic material which has MCE properties. It is due to conventional refrigeration produce chlorofluorocarbons (CFC) and hydrochlorofluorocarbons (HCFCs) gases which causes ozone depletion. The magnetic measurement was performed by using Vibrating Sample Magnetometer in the range of temperature between 300-400 K under external magnetic field until 20 kOe. By using derivative of magnetization as a function of temperature of the material’s result, Curie temperature (Tc ) of the material is 332.7 K. By using equation (5) for calculating magnetic field dependence of magnetization at various temperature result, magnetic entropy change value (ΔSM ) of the material can be obtained. The ΔSM of the material is -2.928 Jkg-1K-1. The material has highest magnetic entropy change value around its Tc . It is due to there is strong lattice spin coupling around its Tc and would be weak at below and above its Tc .

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Electrical properties of La0.7Ba0.297Ca0.003MnO3 obtained by low temperature sol-gel synthesis

Cited by 3 publications

References 15 publications

Effect of Fe<sup>3+ </sup>Partial Substitution at Mn-Site on Electroresistance Behaviour in La<sub>0.7</sub>Ba<sub>0.3</sub>Mn<sub>1-x</sub>Fe<sub>x</sub>O<sub>3</sub> (<i>x</i> = 0 and 0.02) Manganites

Effect of Fe<sup>3+ </sup>Partial Substitution at Mn-Site on Electroresistance Behaviour in La<sub>0.7</sub>Ba<sub>0.3</sub>Mn<sub>1-x</sub>Fe<sub>x</sub>O<sub>3</sub> (<i>x</i> = 0 and 0.02) Manganites

Magnetoresistance temperature dependence of LSMO and LBMO perovskite manganites

Effect of Low Doped Calcium on the Magnetic Properties of La_0.7Ba_0.297Ca_0.003MnO₃ for Magnetocaloric Application

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Electrical properties of La0.7Ba0.297Ca0.003MnO3 obtained by low temperature sol-gel synthesis

Cited by 3 publications

References 15 publications

Effect of Fe<sup>3+ </sup>Partial Substitution at Mn-Site on Electroresistance Behaviour in La<sub>0.7</sub>Ba<sub>0.3</sub>Mn<sub>1-x</sub>Fe<sub>x</sub>O<sub>3</sub> (<i>x</i> = 0 and 0.02) Manganites

Effect of Fe<sup>3+ </sup>Partial Substitution at Mn-Site on Electroresistance Behaviour in La<sub>0.7</sub>Ba<sub>0.3</sub>Mn<sub>1-x</sub>Fe<sub>x</sub>O<sub>3</sub> (<i>x</i> = 0 and 0.02) Manganites

Magnetoresistance temperature dependence of LSMO and LBMO perovskite manganites

Effect of Low Doped Calcium on the Magnetic Properties of La0.7Ba0.297Ca0.003MnO3 for Magnetocaloric Application

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Effect of Low Doped Calcium on the Magnetic Properties of La_0.7Ba_0.297Ca_0.003MnO₃ for Magnetocaloric Application