B-site bismuth doping effect on structural, magnetic and magnetotransport properties of La0.5Ca0.5Mn1−xBixO3

Krichene, A.; Solanki, P.S.; Rayaprol, Sudhindra; Ganesan, V.; Boujelben, W.; Kuberkar, D. G.

doi:10.1016/j.ceramint.2014.10.163

Cited by 74 publications

(13 citation statements)

References 63 publications

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“…In figure 9, we have plotted ln(RCP) vs. ln(μ 0 H ) for all our compounds to determine the critical exponent δ. Then, β and γ values can be calculated using equations (11) and (12). Results are summarized in table 2.…”

Section: Theoretical Considerationsmentioning

confidence: 99%

“…Manganites with the general formula R 1−x A x MnO 3 (R is a rare earth element and A is a divalent alkaline earth element) are considered nowadays as excellent candidates for magnetic refrigeration owing to their high magnetic performance in addition to their low cost and ease of preparation [9]. In our laboratory, the substitution of diamagnetic bismuth in the Asite or B-site of manganites has been studied [10][11][12]. The obtained results have demonstrated that the physical properties of these compounds are strongly affected.…”

Section: Introductionmentioning

confidence: 99%

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Prediction of magnetic and magnetocaloric properties in $$\hbox {Pr}_{0.8-x}\hbox {Bi}_{x}\hbox {Sr}_{0.2}\hbox {MnO}_{3}$$ Pr 0.8 - x Bi

2019

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In this work, we have investigated the magnetic and magnetocaloric properties of Pr 0.8−x Bi x Sr 0.2 MnO 3 (x = 0, 0.05 and 0.1) polycrystalline manganites prepared by sol-gel route on the basis of a phenomenological model. Temperature dependence of magnetization indicates that all our samples exhibit a second order paramagnetic to ferromagnetic transition with a decrease in temperature. A correlation between experimental results and theoretical analysis based on a phenomenological model is investigated. The magnetic and magnetocaloric measurements are well simulated by this model. Under a magnetic applied field of 5 T, the theoretical absolute values of the maximum of magnetic entropy change S Max are found to be equal to 5.33, 3.33 and 2.97 J kg −1 K −1 for x = 0, 0.05 and 0.1 respectively. The relative cooling power and the specific heat capacity values are also estimated. The predicted results permit us to conclude that our compounds may be promising candidates for magnetic refrigeration at low temperatures.

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Section: Theoretical Considerationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Prediction of magnetic and magnetocaloric properties in $$\hbox {Pr}_{0.8-x}\hbox {Bi}_{x}\hbox {Sr}_{0.2}\hbox {MnO}_{3}$$ Pr 0.8 - x Bi

2019

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“…However, these properties are dependent on the local lattice distortion and mismatch between rare earth (at A -site) and alkaline elements (at B -site) [2,6,7]. Structural, transport and magnetic properties of manganites and phase transition temperatures (T P and T C ) are mainly governed by the following three factors:…”

Section: Introductionmentioning

confidence: 99%

Studies on charge transport in Al–doped La0.7Ca0.3Mn1−xAlxO3 manganites

Rathod

Keshvani

Solanki

et al. 2015

Physica B: Condensed Matter

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“…Recently, ABO 3 type perovskites are one of the much attention compounds because of their fascinating physical properties such as ferromagnetic-paramagnetic phase transition at a specific temperature [1], colossal magnetoresistance (CMR) at around transition temperatures [2], magnetocaloric effect (MCE) [3][4][5][6] as well as various applications [7][8][9]. Among the perovskite structures, LaMnO 3 compound with larger ionic radius crystallizes in the orthorhombic structure (space group Pbnm), whereas that with small ionic radius [10,11].…”

Section: Introductionmentioning

confidence: 99%

K dopant effect on $${\hbox {La}}_{0.7}{\hbox {K}}_{x} {\hbox {Ca}}_{0.3-x}{\hbox {MnO}}_{3}$$ ($$x=0,$$ 0.05, 0.1) perovskite compounds: the structural, magnetic and magnetocaloric properties

Tekgül

Ünlü

Şarlar

et al. 2020

J Mater Sci: Mater Electron

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La 0.7 K x Ca 0.3−x MnO 3 ( x = 0, 0.05, 0.1) perovskites were prepared by sol-gel method. The K-doped effect was determined by the structural, magnetic, and magnetocaloric properties of the compounds. In the crystal structure of K-doped La 0.7 Ca 0.3 MnO 3 , Mn-O-Mn bond angle slightly increases with K addition. The transition shifts the range of 270-320 K when the K is added in La 0.7 Ca 0.3 MnO 3 . The Curie temperature increases from 251 to 288 K with increasing K amount. The maximum magnetic entropy change was found to be 2.7 J kg −1 K −1 at 283 K under a magnetic field change of 2 T for the La 0.7 K 0.05 Ca 0.25 MnO 3 . The relative cooling powers (RCPs) in the La 0.7 K x Ca 0.3−x MnO 3 ( x = 0, 0.05, 0.1) samples were calculated to be 103, 133 and 88 J kg −1 , respectively.

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B-site bismuth doping effect on structural, magnetic and magnetotransport properties of La0.5Ca0.5Mn1−xBixO3

Cited by 74 publications

References 63 publications

Prediction of magnetic and magnetocaloric properties in $$\hbox {Pr}_{0.8-x}\hbox {Bi}_{x}\hbox {Sr}_{0.2}\hbox {MnO}_{3}$$ Pr 0.8 - x Bi

Prediction of magnetic and magnetocaloric properties in $$\hbox {Pr}_{0.8-x}\hbox {Bi}_{x}\hbox {Sr}_{0.2}\hbox {MnO}_{3}$$ Pr 0.8 - x Bi

Studies on charge transport in Al–doped La0.7Ca0.3Mn1−xAlxO3 manganites

K dopant effect on $${\hbox {La}}_{0.7}{\hbox {K}}_{x} {\hbox {Ca}}_{0.3-x}{\hbox {MnO}}_{3}$$ ($$x=0,$$ 0.05, 0.1) perovskite compounds: the structural, magnetic and magnetocaloric properties

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