Magnetocaloric effect in polycrystalline La based manganites modified with Sr

Kolano-Burian, Aleksandra; Szymczak, R.; Kolano, R.; Szymczak, H.; Burian, A.; Hawełek, ᴌ.; Zackiewicz, P.; Czepelak, M.

doi:10.1088/1742-6596/303/1/012070

Cited by 3 publications

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References 6 publications

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“…Therefore, no thermal hysteresis between cooling and warming cycles is observed for them during the phase transition. Recently, it has been shown [4,5] that the magnetic entropy change in La-based manganites is very large, even larger than that is exhibited by gadolinium.…”

Section: Introductionmentioning

confidence: 99%

Magnetocaloric Effect in La_0.8Sr_0.2MnO₃Film

et al. 2015

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Thin epitaxial lm of La0.8Sr0.2MnO3 has been deposited on yz-cut LiNbO3 by pulsed laser ablation. The lm was characterized by X-ray diraction and magnetic measurements as a single phase. The magnetic properties and the magnetocaloric eect have been measured as a function of magnetic eld and temperature. A reasonably high magnetocaloric eect indicates that this lm might provide an ecient material for micro magnetic refrigerators.

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Section: Introductionmentioning

confidence: 99%

Magnetocaloric Effect in La_0.8Sr_0.2MnO₃Film

et al. 2015

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Magnetic Properties of Perovskite Manganites and Their Modifications

Markovich

Wiśniewski

Szymczak

2014

Handbook of Magnetic Materials

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Spin-Glass-like State and Reversible Room-Temperature Magnetocaloric Effect in Double Distorted Perovskites Nd(Cu_3–xMn_x)Mn₄O₁₂

2022

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The preparation, complex magnetic properties and room-temperature magnetocaloric effect in Nd(Cu 3−x Mn x )-Mn 4 O 12 with cation distribution (Nd 3+ ) A (Cu 3−x 2+x Mn x 3+ ) A′ (Mn 1+x 3+ Mn 3−x 4+ ) B O 12 2− (x = 1 and 1.5) have been reported. Both compounds show a sharp paramagnetic-ferromagnetic (FM) transition at T C of 300 and 280 K, respectively. The substitution of Cu by Mn at the A′ site induces the emergence of a spin glass state below ≈63 K for x = 1 and ≈72 K for x = 1.5 compound. Another antiferromagnetic-like magnetic transition is also observed in both compounds at 23 and 28 K, respectively, which is discussed as the antiferromagnetic coupling between Nd 3+ at the A′ site and (Mn 3+ /Mn 4+ ) at the B site. These two compounds exhibit roomtemperature magnetocaloric effect. For a small field of 2 T, the maximum magnetic entropy changes −ΔS M are 1.5 J/kg K at 300 K and 1.4 J/kg K at 280 K, respectively. Moreover, the −ΔS M (T) curves show an asymmetric distribution, resulting in high refrigerant capacity values for both compounds. We further demonstrate the distinct roles of the A′-and B-site spins on the magnetic properties and the origin of the spin-glass-like state in double distorted perovskites Ln(Cu 3−x Mn x )Mn 4 O 12 family of compounds.

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Magnetocaloric effect in polycrystalline La based manganites modified with Sr

Cited by 3 publications

References 6 publications

Magnetocaloric Effect in La_0.8Sr_0.2MnO₃Film

Magnetocaloric Effect in La_0.8Sr_0.2MnO₃Film

Magnetic Properties of Perovskite Manganites and Their Modifications

Spin-Glass-like State and Reversible Room-Temperature Magnetocaloric Effect in Double Distorted Perovskites Nd(Cu_3–xMn_x)Mn₄O₁₂

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Magnetocaloric effect in polycrystalline La based manganites modified with Sr

Cited by 3 publications

References 6 publications

Magnetocaloric Effect in La0.8Sr0.2MnO3Film

Magnetocaloric Effect in La0.8Sr0.2MnO3Film

Magnetic Properties of Perovskite Manganites and Their Modifications

Spin-Glass-like State and Reversible Room-Temperature Magnetocaloric Effect in Double Distorted Perovskites Nd(Cu3–xMnx)Mn4O12

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Magnetocaloric Effect in La_0.8Sr_0.2MnO₃Film

Magnetocaloric Effect in La_0.8Sr_0.2MnO₃Film

Spin-Glass-like State and Reversible Room-Temperature Magnetocaloric Effect in Double Distorted Perovskites Nd(Cu_3–xMn_x)Mn₄O₁₂