Investigation of the effect of sintering temperature on structural, magnetic and magnetocaloric properties in PrCaMn2O6 double perovskite manganite system

Ayaş, Ali Osman; Kandemir, Arda; Çetin, Selda Kılıç; Akça, Gönül; Akyol, Mustafa; Ekicibil, Ahmet

doi:10.1007/s10854-022-07843-4

“…2,4,45 Furthermore, it indicates that samples present reversible magnetic entropy change due to the negligible thermal and magnetic hysteresis, which can increase the usability of these samples as a refrigerant material. 46…”

Section: Resultsmentioning

confidence: 99%

“…2,4,45 Furthermore, it indicates that samples present reversible magnetic entropy change due to the negligible thermal and magnetic hysteresis, which can increase the usability of these samples as a refrigerant material. 46 The magnetic entropy change (ÀDS M ) for any magnetic material under a variation of the applied magnetic field from 0 to H max can be expressed as: 47,48…”

Section: Magnetocaloric Effectmentioning

confidence: 99%

High-pressure synthesis, spin-glass behaviour, and magnetocaloric effects in Fe_xTi₂S₄ heideite sulphides

Silva

¹

,

Gainza

²

,

Rodrigues

³

et al. 2022

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“…Electronic band structures Figures 6(a)-(c) shows the spin-polarized band structures of RE 2 ZrZnO 6 (RE = La, Dy and Ho) perovskites in the first Brillion zone. The generalized gradient approximation (PBEsol-GGA) and the Coulomb interaction approach (GGA + U) are the most suitable approximations that we used to deal with the correlation and exchange potentials [40,41]. The Hubbard Hamiltonian's electrostatic repulsion parameter is called U [42].…”

Section: Uv-vis Spectroscopymentioning

confidence: 99%

Structural, electronic, magnetic, and optical properties of RE₂ZrZnO₆ (RE= La, Dy and Ho) double perovskites: experimental and DFT studies

Irfan,

Murtaza,

Alhummiany

et al. 2024

Phys. Scr.

3

0

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In the present work, density functional theory (DFT) and experimental methods are used to examine the structural, electronic, optical, and magnetic characteristics of the RE2ZrZnO6 (RE = La, Dy, and Ho) double perovskites. The synthesis of these double perovskites oxides is done using the solid-state method. The orthorhombic structures are confirmed by XRD analysis. The EDS mapping shows the presence of La, Dy, Ho, Zr, Zn, and O with their required compositions, SEM images demonstrate the formation of well-shaped particles. On the theoretical side, Full potential linearized augmented plane wave (FP-LAPW) method is employed in the framework WIEN2k code. The half metallic nature of the studied compounds was revealed by spin polarized band structures and density of states. It was found that optical conductivity increases as photon energy increases up to a certain point, beyond the limit it begins to decrease. The comprehensive analysis reveals the studied compounds are potential materials for spintronic applications.

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Study of magnetocaloric properties of small Bi-doped Pr0.55Ca0.05Ba0.40Mn1−xBixO3 manganites

Akça,

Kılıç Çetin,

Ekicibil

2024

J Mater Sci: Mater Electron

0

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Here, we investigated the magnetic and magnetocaloric (MC) properties of manganites labeled PrCaBaMnO and PrCaBaMnBiO, with compositions Pr0.55Ca0.05Ba0.40Mn1−xBixO3 (x = 0 and 0.02), respectively. The solid-state reaction method was used for sample preparation, and the structural properties were checked using X-ray diffraction (XRD). Temperature dependence of magnetization (M(T)) measurements was carried out in the range of 5–300 K under 100 Oe field to determine the transition temperature of the manganites. Magnetic entropy change ($$-\Delta {S}_{\text{M}}$$ - Δ S M ) values were computed from field-dependent magnetization (M(H)) measurements. For the 2 T magnetic field values, the $$-\Delta {{S}_{ }}_{\text{M}}^{\text{max}}$$ - Δ S M max values for the PrCaBaMnO and PrCaBaMnBiO manganites are 3.15 and 2.86 Jkg-1K-1, respectively. Relative Cooling Power (RCP) values were calculated from the temperature dependence of $$-\Delta {S}_{\text{M}}$$ - Δ S M (T) curves, resulting in 82.4 and 88.6 Jkg-1 for PrCaBaMnO and PrCaBaMnBiO, respectively. Banerjee’s criterion and Franco’s universal master curve confirmed that the transition type for the studied manganites is second order.

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Investigation of the effect of sintering temperature on structural, magnetic and magnetocaloric properties in PrCaMn2O6 double perovskite manganite system

Cited by 5 publications

References 58 publications

High-pressure synthesis, spin-glass behaviour, and magnetocaloric effects in Fe_xTi₂S₄ heideite sulphides

High-pressure synthesis, spin-glass behaviour, and magnetocaloric effects in Fe_xTi₂S₄ heideite sulphides

Structural, electronic, magnetic, and optical properties of RE₂ZrZnO₆ (RE= La, Dy and Ho) double perovskites: experimental and DFT studies

Study of magnetocaloric properties of small Bi-doped Pr0.55Ca0.05Ba0.40Mn1−xBixO3 manganites

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Investigation of the effect of sintering temperature on structural, magnetic and magnetocaloric properties in PrCaMn2O6 double perovskite manganite system

Cited by 5 publications

References 58 publications

High-pressure synthesis, spin-glass behaviour, and magnetocaloric effects in FexTi2S4 heideite sulphides

High-pressure synthesis, spin-glass behaviour, and magnetocaloric effects in FexTi2S4 heideite sulphides

Structural, electronic, magnetic, and optical properties of RE2ZrZnO6 (RE= La, Dy and Ho) double perovskites: experimental and DFT studies

Study of magnetocaloric properties of small Bi-doped Pr0.55Ca0.05Ba0.40Mn1−xBixO3 manganites

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Product

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High-pressure synthesis, spin-glass behaviour, and magnetocaloric effects in Fe_xTi₂S₄ heideite sulphides

High-pressure synthesis, spin-glass behaviour, and magnetocaloric effects in Fe_xTi₂S₄ heideite sulphides

Structural, electronic, magnetic, and optical properties of RE₂ZrZnO₆ (RE= La, Dy and Ho) double perovskites: experimental and DFT studies