Temperature-dependent sound velocities, attenuation and elastic moduli anomalies in Pr1−xSrxMnO3perovskite manganite materials at 0.28 ≤ X ≤ 0.41

Sankarrajan, S.; Sakthipandi, K.; Rajendran, V.

doi:10.1080/01411594.2011.617607

Cited by 12 publications

(11 citation statements)

References 35 publications

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“…Further, the ionic radii of the R ions are used to know the state of perovskites, that is, PM or AFM states 34 . On the basis of the above studies, it is concluded that a decrease in the T c value, which is obtained from the maxima/minima that are observed in the ultrasonic parameters, strongly supports the results obtained from resistivity, electrical, Mossbauer and magnetic property studies 16,17,19,[22][23][24][25] .…”

Section: Resultssupporting

confidence: 68%

“…The composition-and ionic radii-dependent T c values are shown in Figure 1. The observed prominent peaks in U L and U s for all perovskites with different compositions have been obtained from the measured velocities [22][23][24][25] . The T c values obtained from the magnitude of U L and U s in all perovskites and compositions are shown in Figures 2 and 3 respectively.…”

Section: Resultsmentioning

confidence: 99%

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Effect of rare earth ions on transition temperature in perovskite materials by on-line ultrasonic studies

Sankarrajan¹,

Sakthipandi²,

Rajendran³

2012

Mat. Res.

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On-line measurements of ultrasonic longitudinal velocity, shear velocity and longitudinal attenuation were carried out on R 1-x Sr x MnO 3 perovskites (R = La, Pr, Nd and Sm) for different compositions of Sr, at a fundamental frequency of 5 MHz over wide range of temperatures using the through-transmission method. The observed maxima/minima in velocities and attenuation have been discussed with decrease in ionic radii and composition. As a decrease in the ionic radii of rare earth elements leads to a decrease in transition temperature (T c ), the results that are observed show that measurement is one of the best tools to explore the structural/phase transition on-line velocity in perovskite manganese materials as a function of the ionic radii of rare earth elements.

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Section: Resultssupporting

confidence: 68%

Section: Resultsmentioning

confidence: 99%

Effect of rare earth ions on transition temperature in perovskite materials by on-line ultrasonic studies

Sankarrajan¹,

Sakthipandi²,

Rajendran³

2012

Mat. Res.

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“…The phenomena such as MI transition temperature (T P ), FM-PM transition temperature (T C ), charge ordering temperature (T CO ), JT temperature (T JT ), and Neel temperature (T N ) are precisely revealed using ultrasonic studies [24,26,27,31,42,43]. In BLSCMO10, a decrease in velocity starts from 338 until 342 K, beyond which an increase in velocity is noticed with the increase in temperature up to 345 K. On the other hand, in NLSCMO10, a decrease in velocity starts at 327 K and the velocity reaches a minimum at 336 K, beyond which an increase in velocity is noticed with an increase in temperature up to 344 K.…”

Section: Ultrasonic Studies and Phase Transition Under Different Concmentioning

confidence: 99%

“…However, the nanocrystalline perovskite manganites were synthesized with different proportions (x = 0.10, 0.15, and 0.20) using sonication reaction [26]. Initially, the required mass of carbonate powder was dissolved in diluted nitric acid (HNO 3 ).…”

Section: Synthesis Of Lscmo Manganitesmentioning

confidence: 99%

“…The temperature-dependent ultrasonic velocities and attenuation measurements are very sensitive to lattice/ structural changes, which facilitate gaining a deeper insight into lattice distortions [24][25][26][27]. The temperature-dependent phase transition of manganites depends on lattice and involves a complex interplay between the structural, spin, charge, and orbital degrees of freedom, which in turn results in change in the crystal lattice [13,20,21,24].…”

Section: Introductionmentioning

confidence: 99%

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Ferromagnetic–paramagnetic transition temperature in bulk and nanostructured La0.7Sr x Ca0.3−x MnO3 (x = 0.10, 0.15, and 0.20) manganite materials

et al. 2015

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Series of bulk and nanostructured La 0.7 Sr x Ca 0.3-x MnO 3 (x = 0.10, 0.15, and 0.20) manganites were synthesized and characterized using different techniques. In the series, both the bulk and nanostructured La 0.7 Sr 0.10 Ca 0.20 MnO 3 and La 0.7 Sr 0.20 Ca 0.10 MnO 3 manganites have orthorhombic and rhombohedral structures, whereas La 0.7 Sr 0.15 Ca 0.15 MnO 3 manganite has rhombohedral and orthorhombic structures, respectively. Online ultrasonic velocity and attenuation measurements were taken through an indigenously designed ultrasonic setup, and the analysis was done from 300 to 400 K during the aging of the samples to explore the structural/phase transitions. The bulk and nanocrystalline La 0.7 Sr x Ca 0.3-x MnO 3 perovskite samples show the particle size distribution in the range of 197-943 and 24-93 nm, respectively. The addition of Sr 2? alters the size of particles, which decrease in size. The observed anomaly in ultrasonic velocities, attenuations, and elastic moduli is correlated with the ferromagnetic-paramagnetic (FM-PM) transition temperature (T C ) in both bulk and nanocrystalline perovskites. In addition, the shift in T C and the magnitude and width of observed anomaly are correlated with the value of x to study the behavior of T C .

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Influence of low-level substitution Pr/(Sr or Ba) in PrMnO3 on structure distortions, magnetic transitions, and surface evolution

Vedmid’,

Fedorova,

Fetisov

et al. 2024

J Mater Sci: Mater Electron

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Temperature-dependent sound velocities, attenuation and elastic moduli anomalies in Pr₁₋_xSr_xMnO₃perovskite manganite materials at 0.28 ≤ X ≤ 0.41

Cited by 12 publications

References 35 publications

Effect of rare earth ions on transition temperature in perovskite materials by on-line ultrasonic studies

Effect of rare earth ions on transition temperature in perovskite materials by on-line ultrasonic studies

Ferromagnetic–paramagnetic transition temperature in bulk and nanostructured La0.7Sr x Ca0.3−x MnO3 (x = 0.10, 0.15, and 0.20) manganite materials

Influence of low-level substitution Pr/(Sr or Ba) in PrMnO3 on structure distortions, magnetic transitions, and surface evolution

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