Ferro- to Paramagnetic Phase Transition in La0.90Pr0.10Mn0.8Co0.2O3 Perovskite

Choudhary, B. L.; Kumari, Namita; Sarita, .; Anchal, None; Palsaniya, K. K.; Choudhary, Shaily; Priya, None; Alvi, P. A.; Dolia, S. N.; Kumar, Sudhish

doi:10.1007/s10909-022-02930-6

Cited by 9 publications

(1 citation statement)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The initial interest in these compounds stemmed from the discovery of a colossal magnetoresistance effect [3][4][5][6]. Later, a variety of intriguing magnetic and electrical effects were uncovered in these compounds [7][8][9][10][11][12][13][14][15][16], including the observation of both positive and negative temperature resistance coefficients [17], metal-insulator transitions [18], ferromagnetic-paramagnetic transitions [19,20], and charge ordering [21,22]. These properties make these materials promising for use in magnetic sensors [23], supercapacitors [24], and infrared bolometers [25,26].…”

Section: Introductionmentioning

confidence: 99%

Crystal structure, composition and valence state of cations in mixed-valence A_1−xCd_xMnO₃ (A=Pr, La) ceramics

Googlev,

Kozakov,

Kochur

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

Complex manganites A1-xCdxMnO3 (A=Pr, La) are synthesized by solid state reaction method. Xray diffraction, scanning electron microscopy, and energy-dispersive analysis are applied to study their crystal structure, surface morphology, elemental and phase composition. X-ray photoelectron spectroscopy (XPS) methods are used to study the charge states of Pr and La cations, as well as to quantify the fractions of coexisting Mn3+ and Mn4+ ions. La3d-, La4d-, Pr4d- и Mn2p-spectra of ions La3+, Pr3+, Mn3+ and Mn4+ are calculated in the isolated–ion approximation with accounting for multiplet splitting and charge transfer effect. Good agreement with the experiment is obtained. The relative fractions of trivalent and tetravalent manganese ions in La0.45Cd0.78Mn0,9O2.86 and Pr0.49Cd0.74Mn0.85O2.91 are determined by fitting the Mn2p spectra by the superpositions of experimental spectra containing only Mn3+ and only Mn4+ ions; they were found to be 0.71Mn3+/0.29Mn4+ and 0.54Mn3+/0.46Mn4+, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Crystal structure, composition and valence state of cations in mixed-valence A_1−xCd_xMnO₃ (A=Pr, La) ceramics

Googlev,

Kozakov,

Kochur

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

show abstract

Studies of Structural, Optical, and Raman Analysis of Ni‐Substituted CoFe₂O₄

Sarita,

Anchal,

Priya

et al. 2024

Physica Status Solidi (a)

View full text Add to dashboard Cite

The polycrystalline ferrite samples of NixCo1−xFe2O4 (x = 0.1, 0.3, 0.5, 0.7, and 0.9) are synthesized through the well‐known sol–gel method. The X‐ray diffraction (XRD) pattern confirms the cubic single‐phase spinel structure. Rietveld refinement indicates the absence of any other impurity phases in the samples. Additionally, XRD analysis reveals variations in lattice parameters corresponding to the doping. The Debye Scherer formula has been used to calculate the crystallite size of the samples, the crystallite size of the samples existing in the nanoregime. The results from field emission scanning electron microscopy confirm the morphological structure of the prepared samples. Additionally, the energy‐dispersive X‐ray spectra confirm the elemental composition and purity of the synthesized samples, validating the appropriateness of doping in the polycrystalline samples. The Raman spectra give the information about the vibrational modes in the sample. The Fourier transform infrared rays spectrum shows that the samples have a broad range of chemical interactions. The photoluminescence spectroscopy (PL) suggests strong luminescence in the visible range. PL spectroscopy provides that PL intensity decreases with increasing excitation wavelength due to nanosize of the particle.

show abstract

The role of citric acid for formation of nanocrystalline MnFe2O4 ferrite

Kumari,

Sarita,

Anchal

et al. 2024

Appl. Phys. A

View full text Add to dashboard Cite

Ferro- to Paramagnetic Phase Transition in La0.90Pr0.10Mn0.8Co0.2O3 Perovskite

Cited by 9 publications

References 42 publications

Crystal structure, composition and valence state of cations in mixed-valence A_1−xCd_xMnO₃ (A=Pr, La) ceramics

Crystal structure, composition and valence state of cations in mixed-valence A_1−xCd_xMnO₃ (A=Pr, La) ceramics

Studies of Structural, Optical, and Raman Analysis of Ni‐Substituted CoFe₂O₄

The role of citric acid for formation of nanocrystalline MnFe2O4 ferrite

Contact Info

Product

Resources

About

Ferro- to Paramagnetic Phase Transition in La0.90Pr0.10Mn0.8Co0.2O3 Perovskite

Cited by 9 publications

References 42 publications

Crystal structure, composition and valence state of cations in mixed-valence A1−xCdxMnO3 (A=Pr, La) ceramics

Crystal structure, composition and valence state of cations in mixed-valence A1−xCdxMnO3 (A=Pr, La) ceramics

Studies of Structural, Optical, and Raman Analysis of Ni‐Substituted CoFe2O4

The role of citric acid for formation of nanocrystalline MnFe2O4 ferrite

Contact Info

Product

Resources

About

Crystal structure, composition and valence state of cations in mixed-valence A_1−xCd_xMnO₃ (A=Pr, La) ceramics

Crystal structure, composition and valence state of cations in mixed-valence A_1−xCd_xMnO₃ (A=Pr, La) ceramics

Studies of Structural, Optical, and Raman Analysis of Ni‐Substituted CoFe₂O₄