Investigation of cationic disorder effects on the transport and magnetic properties of perovskite <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si117.svg"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Pr</mml:mi></mml:mrow><mml:mrow><mml:mn>0.7</mml:mn><mml:mo>-</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mi mathvariant="normal">RE</mml:mi></mml:mrow><mml:mrow><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mi mathvariant="normal

Pal, Anand; Rao, Ashok; Kekuda, Dhananjaya; Nagaraja, B.S.; Mondal, Rittwick; Biswas, Dipankar

doi:10.1016/j.jmmm.2020.167011

Cited by 31 publications

(1 citation statement)

References 51 publications

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“…These interactions coexist and compete with antiferromagnetic super exchange interactions caused by covalent Mn ion pairs (Mn 3+ -Mn 3+ and Mn 4+ -Mn 4+ ). Previous studies have shown that the electromagnetic effects in manganites often occur around the electrical (metal-insulator) and magnetic (ferromagnetic-paramagnetic (FM-PM)) phase transitions [2,[5][6][7][8], and they are strongly influenced by the average ionic radius at the R/A-site and the ratio of Mn +3 /Mn 4+ [2-5, 7, 8]. Among them, the Pr 1-x Sr x MnO 3 system is considered as one of the most interested ones.…”

Section: Introductionmentioning

confidence: 99%

Structural and critical properties of Pr_0.5Sr_0.5MnO₃ nanoparticle

Chinh¹,

Linh²,

Dung³

et al. 2023

Adv. Nat. Sci: Nanosci. Nanotechnol.

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In this work, a sample of Pr0.5Sr0.5MnO3 nanoparticles with an average crystalline size of <D> = 58 ± 2 nm was prepared by a combination of reactive milling method for 6 h at room temperature and heat treatment at the 1100 °C for 0.5 h. The x-ray diffraction analysis revealed the existence of a Pr0.5Sr0.5MnO3 single phase with the tetragonal structure (I4/mcm space group). Temperature and magnetic field dependences of magnetisation measurements indicated a coexistence of two magnetic phase transitions. One is the antiferromagnetic-ferromagnetic transition at T N = 150 K. The other is the second-order ferromagnetic-paramagnetic phase transition at T C = 273.5 K. Using the modified Arrott plots and the Kouvel-Fisher methods, the critical isotherm analysis, and the scaling relation, the magnetic order in Pr0.5Sr0.5MnO3 nanoparticle sample has been pointed out. Accordingly, the critical exponents were found to be β = 0.486, γ = 1.181, and δ = 3.249. These values are quite close to the allowable exponents of the mean field model, suggesting an existence of the long-range ferromagnetic order. A slight deviation from the mean field model has been explained by the formation of the core/shell structure in Pr0.5Sr0.5MnO3 nanoparticle.

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