Basal plane ferromagnetism in the rhombohedral manganite <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si59.svg"><mml:mrow><mml:msub><mml:mrow><mml:mtext>La</mml:mtext></mml:mrow><mml:mrow><mml:mn>0.85</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mtext>Ag</mml:mtext></mml:mrow><mml:mrow><mml:mn>0.15</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mtext>MnO</mml:mtext></mml:mrow><mml:mrow><mml:mn>3</mml:mn><mml:mo>+</mml:mo><mml:mi>δ</mml:mi></mml:mrow></mml:msub></mml:mr

Larsen, Camilla Buhl; Samothrakitis, Stavros; Fortes, A. Dominic; Ayaş, Ali Osman; Akyol, Mustafa; Ekicibil, Ahmet; Laver, Mark

doi:10.1016/j.jmmm.2019.166192

Cited by 14 publications

(3 citation statements)

References 36 publications

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“…These lattice parameters are higher than those presented for the rhombohedral La0.85Ag0.15MnO3 in Refs. [21,22]. Obviously the Ba for La substitution causes the increase of lattice parameters in La0.85Ag0.15MnO3 sample.…”

Section: Xrd Analysismentioning

confidence: 95%

Structural Analysis and Theoretical Investigations of the Magnetocaloric Effect for La0.7Ba0.15Ag0.15MnO3 Manganite Prepared Using Sol-Gel Route

Hcini

Hsini

Robei

et al. 2020

J Supercond Nov Magn

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Structural analysis, magnetocaloric properties, and theoretical investigations of the magnetocaloric effect were carried out in the crystalline La0.7Ba0.15Ag0.15MnO3 manganite prepared using sol-gel route. The phase purity and structure of this sample were checked by X-ray diffraction technique and Rietveld analysis. From magnetic measurements, the ferromagnetic to paramagnetic (FM-PM) phase transition was observed around TC= 255 K.The maximum change in magnetic entropy (∆𝑆 𝑀 𝑚𝑎𝑥 ) and relative cooling power (RCP)extracted from magnetic measurements were 3.48 J×kg-1×K -1 and 225 J×kg -1 at an applied magnetic field of 5 T. These magnetocaloric parameters offer to the sample the possible use in the magnetic refrigeration technology. The magnetic-entropy simulation by using different theories such as the Weiss molecular mean-field theory and the Landau theory shows good correlation between the theoretical values of -∆SM(T) and the experimental ones estimated from Maxwell relation.

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Section: Xrd Analysismentioning

confidence: 95%

Structural Analysis and Theoretical Investigations of the Magnetocaloric Effect for La0.7Ba0.15Ag0.15MnO3 Manganite Prepared Using Sol-Gel Route

Hcini

Hsini

Robei

et al. 2020

J Supercond Nov Magn

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“…The magnetic properties of perovskite manganites are significantly influenced by the Mn+3/Mn+4 ratio, Mn-O bond length, and Mn-O-Mn bond angles, as they impact the double exchange interaction [8]. This behaviour can be altered through the introduction of suitable ions at A and B sites, resulting in a significant change in the characteristic behaviour of these manganites [9][10][11][12][13][14]. The method of preparation, magnitude, orientation of the unit cell, dopant, etc., all have an impact on the structural features of manganites.…”

Section: Introductionmentioning

confidence: 99%

Impact of Crystallite Size on Structural, Optical and Magnetic Characteristics of La0.7Sr0.15Ca0.15MnO3 Nanocrystalline

Shukur,

Kumar,

Rao

2023

East Eur. J. Phys.

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Nanocrystalline La0.7Sr0.15Ca0.15MnO3 (LSCMO) manganites were prepared by the combustion process and heated to various annealing temperatures (TA) to get various sized crystallites. The X-ray diffraction (XRD) patterns provided evidence that a Rhombohedral structure with space group was formed. Additionally, an increase in the size of the crystallites was observed, from 15.64 to 36.78nm, as the temperature (TA) increased from 700℃ to 1300℃. The FESEM micrographs revealed that homogeneous with porosity. The FTIR spectra showed five absorption peaks. The Optical energy gap of LSCMO nanocrystalline is decreased from 3.51 to 3.28 eV as annealed temperature raised, reveals that the LSCMO nanoparticles are semiconductor in nature. Room temperature Raman spectra of LSCMO nanoparticles demonstrate a notable reliance on annealing temperature. When the Raman modes were analysed with respect to TA, it was observed that the Raman vibrational phonon mode below 200cm-1 (A1g) and four modes (Eg) in the range 200-800cm-1 displayed significant displacements and widening, which were associated with oxygen sublattice distortion. Considerable changes were observed in both the intensity and full width half maximum (FWHM) of the five Raman modes as the annealing temperature increased. Magnetic behaviour using M-H loop at room temperature were measured by the Vibrating sample magnetometer revealed that gradation of saturation magnetization as the function of annealing temperature. Hence there is a remarkable crystallite size effect on optical and magnetic properties of LSCMO nanocrystallites.

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“…9 These proprieties have attracted considerable attention and bring a new theory and model to explain the interactions between transport and magnetic behaviors such as spin-glass and charge ordering. 10 The simplicity of structure has been extensively exploited as a clue for numerous applications due to the moderation of properties by the substitution of A and/or B, resulting in a variety of structures that could play a key role to manipulate capacity and performance. 11 The occupation of the transition metal B in the octahedral system produced a splitting of the d orbital into two degenerated e g orbitals and three t 2g orbitals.…”

Section: Introductionmentioning

confidence: 99%

Raman scattering and red emission of Mn⁴⁺ in La_0.7Sr_0.25Na_0.05Mn_0.7Ti_0.3O₃ manganite phosphor for LED applications

et al. 2020

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Basal plane ferromagnetism in the rhombohedral manganite La0.85Ag0.15MnO3+δ

Cited by 14 publications

References 36 publications

Structural Analysis and Theoretical Investigations of the Magnetocaloric Effect for La0.7Ba0.15Ag0.15MnO3 Manganite Prepared Using Sol-Gel Route

Structural Analysis and Theoretical Investigations of the Magnetocaloric Effect for La0.7Ba0.15Ag0.15MnO3 Manganite Prepared Using Sol-Gel Route

Impact of Crystallite Size on Structural, Optical and Magnetic Characteristics of La0.7Sr0.15Ca0.15MnO3 Nanocrystalline

Raman scattering and red emission of Mn⁴⁺ in La_0.7Sr_0.25Na_0.05Mn_0.7Ti_0.3O₃ manganite phosphor for LED applications

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Basal plane ferromagnetism in the rhombohedral manganite La0.85Ag0.15MnO3+δ

Cited by 14 publications

References 36 publications

Structural Analysis and Theoretical Investigations of the Magnetocaloric Effect for La0.7Ba0.15Ag0.15MnO3 Manganite Prepared Using Sol-Gel Route

Structural Analysis and Theoretical Investigations of the Magnetocaloric Effect for La0.7Ba0.15Ag0.15MnO3 Manganite Prepared Using Sol-Gel Route

Impact of Crystallite Size on Structural, Optical and Magnetic Characteristics of La0.7Sr0.15Ca0.15MnO3 Nanocrystalline

Raman scattering and red emission of Mn4+ in La0.7Sr0.25Na0.05Mn0.7Ti0.3O3 manganite phosphor for LED applications

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Raman scattering and red emission of Mn⁴⁺ in La_0.7Sr_0.25Na_0.05Mn_0.7Ti_0.3O₃ manganite phosphor for LED applications