Effect of Ni doping in rare-earth manganite La0.7Pb0.3Mn1−xNixO3 ()

Pal, Sarmistha; Bose, Esa; Chaudhuri, B. K.; Yang, H. D.; Neeleshwar, S.; Chen, Y.Y.

doi:10.1016/j.jmmm.2004.12.005

Cited by 43 publications

(20 citation statements)

References 26 publications

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“…The values of T MS decrease from 160 to 120 K for x = 0 and x = 0.1, respectively. This result can be explained that the transition temperature T MS is dependent on Ni concentration, which is consistent with the results reported in [10,11] for Nidoped manganites. The decrease in T MS with Ni doping in our samples can be assigned by the reduction in the Mn 3?…”

Section: Low-frequency Behaviorsupporting

confidence: 92%

“…pair. As a result, the doping with Ni results in depletion of hopping electrons which destroys metallicity and pushes the system in semiconductor side [11,12]. From Fig.…”

Section: Low-frequency Behaviormentioning

confidence: 98%

“…[7][8][9] that doping in Mn-site affects the conduction mechanism, particularly the decreasing of metal-insulator transition temperature which depends on the nature of element doping. Among the transition metal ions, nickel is one of the most fascinating members [10][11][12]. It has been observed that Ni doping at Mn-site modifies the Mn 3?…”

Section: Introductionmentioning

confidence: 99%

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Electrical conductance and complex impedance analysis of La0.6Pr0.1Ba0.3Mn1−xNixO3 nanocrystalline manganites

et al. 2015

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We have investigated the electrical properties of La 0.6 Pr 0.1 Ba 0.3 Mn 1-x Ni x O 3 (x = 0 and x = 0.1) nanocrystalline manganites using complex impedance spectroscopy technique in 40Hz-10 kHz and 80-320 K, frequency and temperature ranges, respectively. The two samples exhibit a metal-semiconductor transition temperature T MS which decreases from 160 to 120 K when increasing Ni content from x = 0 to x = 0.1. The total conductance curves for samples are found to obey Jonscher power law G(x) = G DC ? Ax n . The Ni content affects the activation energy (E a ) which increases from 37 meV for x = 0 to 48 meV for x = 0.1. The obtained n exponent values for x = 0 are higher than those obtained for x = 0.1. This can be related to the decrease in grain size when Ni content increases. Nyquist plots of impedance show semicircle arcs for samples, and an electrical equivalent circuit has been proposed to explain the impedance results.

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Section: Low-frequency Behaviorsupporting

confidence: 92%

“…pair. As a result, the doping with Ni results in depletion of hopping electrons which destroys metallicity and pushes the system in semiconductor side [11,12]. From Fig.…”

Section: Low-frequency Behaviormentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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Electrical conductance and complex impedance analysis of La0.6Pr0.1Ba0.3Mn1−xNixO3 nanocrystalline manganites

et al. 2015

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“…Concerning the transport mechanism, different models have been used. A thermal activated conductivity is reported by some researchers [7,8], while others fit their data by a hopping mechanism [9][10][11][12]. The ac conductivity studied at variable frequencies and temperatures gives useful information about the diffusion of mobile ions and short time phenomena due to local motion of mobile ions [13].…”

Section: Introductionmentioning

confidence: 99%

Study of the electrical and dielectric measurements of a rare-earth doped perovskite La0.6Nd0.1Sr0.3Mn0.7Ti0.3O3

Abassi

Kallel

et al. 2016

Indian J Phys

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International audienceElectrical and dielectric properties of a polycrystalline La0.6Nd0.1Sr0.3Mn0.7Ti0.3O3 sample prepared by standard solid state reaction technique are presented. FTIR studies have showed the vibration of (Mn/Ti)O6 octahedra. The complex impedance is investigated in a temperature range 120–340 K and in frequency range 40 Hz–10 MHz. The impedance spectra have indicated that the electrical properties are strongly dependent on temperature and frequency, showing a good correlation with the sample microstructure. Ac conductivity is found to obey Jonscher power law. The value of activation energy estimated from the conductivity analysis is slightly higher than that deduced from relaxation analysis. © 2016, Indian Association for the Cultivation of Science

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“…However, out of the two, the last is more appropriate as it directly affects the mechanism happening among different MnO 6 octahedra. In this regard, several authors have substituted different transition metal ions like Fe +3 , Al +3 , Ga +3 , Zn +2 , Cu +3 , Ni +2 at the Mn-site and have shown that Mn-site substitution severely affects the conduction mechanism as well as the magnetic properties [21][22][23][24][25][26][27][28] . However, fewer results exist for higher valent ion substitution at Mn-site to see its effect on the transport properties [29][30][31][32][33] .…”

Section: Introductionmentioning

confidence: 99%

Structural, Morphological, Magneto-Transport and Thermal Properties of Antimony Substituted (La,Pr)2/3Ba1/3Mn1-xSbxO3 Perovskite Manganites

Panwar¹,

Coondoo²,

Sen³

et al. 2011

Advances in Ceramics - Electric and Magnetic Ceramics, Bioceramics, Ceramics and Environment

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Effect of Ni doping in rare-earth manganite La0.7Pb0.3Mn1−xNixO3 ()

Cited by 43 publications

References 26 publications

Electrical conductance and complex impedance analysis of La0.6Pr0.1Ba0.3Mn1−xNixO3 nanocrystalline manganites

Electrical conductance and complex impedance analysis of La0.6Pr0.1Ba0.3Mn1−xNixO3 nanocrystalline manganites

Study of the electrical and dielectric measurements of a rare-earth doped perovskite La0.6Nd0.1Sr0.3Mn0.7Ti0.3O3

Structural, Morphological, Magneto-Transport and Thermal Properties of Antimony Substituted (La,Pr)2/3Ba1/3Mn1-xSbxO3 Perovskite Manganites

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