Abstract
A series of vacant do** samples of La0.65−xCa0.35MnO3 (x = 0, 0.05, 0.10, 0.15) were prepared by sol-gel method. XRD analysis results show that all samples are a single-phase perovskite structure; XRD refinement demonstrates that La0.50Ca0.35MnO3 is a single phase with the space group Pbnm. When x = 0.15, the variation of magnetization versus temperature in a magnetic applied field of the sample indicates that La0.5Ca0.35MnO3 is converted from a ferromagnetic phase to a paramagnetic phase. The Curie temperature (Tc) of the sample increases with the concentration of vacancy do**. The value of Tc increases from 209.5 to 242.1 K when x increases from 0 to 0.15. The Arrott plot indicates that the phase transition occurring in the sample is a secondary phase transition. When x = 0.15, the Curie temperature of the sample reaches 242.1 K; when the magnetic field variation is equal to 5 T, the maximum magnetic entropy changes (− ΔSM) of the sample become 1.77 J kg−1 K−1 and the relative cooling capacity (RCP) is 95.58 J•kg−1.
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Pecharsky, V.K., Cui, J., Johnson, D.D.: (Magneto)caloric refrigeration: is there light at the end of the tunnel. Philos. Trans. R. Soc. A Math. Phys. Eng. Sci. 374(2074), 20150305 (2016)
Lu, Y., Di, N., Wang, G., et al.: Low-field-induced magnetic entropy change in single-crystal Nd0.47Sr0.53MnO3. J. Phys. Condens. Matter. 16(16), 243–248 (2004)
Phan, M.H., Yu, S.C.: Review of the magnetocaloric effect in manganite materials. Cheminform. 308(2), 325–340 (2007)
Chen, X., Chen, Y., Tang, Y., et al.: System analysis of magnetic phase transition characteristics in the first-order magnetic refrigeration material of La Fe_(11.6)Si_(1.4) alloys. Journal of the Chinese Society of Rare Earths. 33 (2015)
Gharsallah, H., Bejar, M., Dhahri, E., et al.: Critical behavior in the La0.6Ca0.4−xSrxMnO3 nano-particle compounds for x =0, 0.05 and 0.4. J. Phys. Chem. Solids. 109, 50–63 (2017)
Tlili, R., Omri, A., Bejar, M., et al.: Theoretical investigation of the magnetocaloric effect of La0.7 (Ba, sr)0.3MnO3 compound at room temperature with a second-order magnetic phase transition. Ceram. Int. 41(9), 10654–10658 (2015)
Smari, M., Walha, I., Omri, A., et al.: Critical parameters near the ferromagnetic–paramagnetic phase transition in La0.5Ca0.5−xAgxMnO3 compounds (0.1≤x≤0.2). CeramicsInternational. 40(7), 8945–8951 (2014)
Tlili, R., Omri, A., Bejar, M., et al.: Theoretical investigation of the magnetocaloric effect of La0.7 (Ba, sr)0.3MnO3 compound at room temperature with a second-order magnetic phase transition. Ceram. Int. 41(9), 10654–10658 (2015)
Smari, M., Walha, I., Omri, A., et al.: Critical parameters near the ferromagnetic–paramagnetic phase transition in La0.5Ca0.5−xAgxMnO3 compounds(0.1≤x≤0.2). Ceram. Int. 40(7), 8945–8951 (2014)
Skini, R., Khlifi, M., Triki, M., et al.: Magnetocaloric effect of perovskite manganites La0.7Ca0.2MnO3. Chem. Phys. 452, 67–70 (2015)
Bourouina, M., Krichene, A., Boudjada, N.C., et al.: Structural, magnetic and magnetocaloric properties of nanostructured Pr0.5Sr0.5MnO3 manganite synthesized by mechanical alloying. Ceram. Int. 43(11), 8139–8145 (2017)
Smari, M., Walha, I., Dhahri, E., et al.: Structural, magnetic and magnetocaloric properties of Ag-doped La0.5Ca0.5−x AgxMnO3 compounds with 0 ⩽ x ⩽ 0.4. J. Alloys Compd. 579, 564–571 (2013)
Rietveld, H.M.: A profile refinement method for nuclear and magnetic structures. J. Appl. Crystallogr. 2(2), 65–71 (2010)
Kanamori, J.: Crystal distortion in magnetic compounds. J. Appl. Phys. 31(5), 14–23 (1960)
**, S., Tiefel, T.H., Mccormack, M., et al.: Thousandfold change in resistivity in magnetoresistive La-Ca-Mn-O films. Science. 264(5157), 413–415 (1994)
R. Jha, Shiva Kumar Singh, Anuj Kumar, V. P. S. Awana. Room temperature magnetic entropy change and magnetoresistance in La0.70(Ca0.30−xSrx)MnO3:Ag 10% (x=0.0–0.10)[J]. J. Magn. Magn. Mater., 2012, 324:2849–2853
Khlifi, M., Bejar, M., Dhahri, E., et al.: Influence of Ca-deficiency on the magneto-transport properties in La(0.8)Ca(0.2)MnO(3) perovskite and estimation of magnetic entropy change. J. Appl. Phys. 111(10), 1224–1801 (2012)
Debbebi, I.S., Cheikhrouhou-Koubaa, W., Cheikhrouhou, A., et al.: Structural, magnetic and magnetocaloric investigation of La0.7−xDyxCa0.3MnO3 (x = 0.00, 0.01 and 0.03) manganite. J. Mater. Sci. Mater. Electron. (2017)
Jerbi, A., Krichene, A., Thaljaoui, R., et al.: Structural, magnetic, and electrical study of polycrystalline Pr0.55Sr0.45−xNaxMnO3 ( x = 0.05 and 0.1). Phys. B Condens. Matter. 442(1), 21–28 (2014)
Messaoui, I., Riahi, K., Cheikhrouhou-Koubaa, W., et al.: Phenomenological model of the magnetocaloric effect on Nd0.7Ca0.15Sr0.15MnO3 compound prepared by ball milling method. Ceram. Int. 42(6), 6825–6832 (2016)
Arrott, A.: Criterion for ferromagnetism from observations of magnetic isotherms. Phys. Rev. 108(6), 1394–1396 (1957)
Banerjee, B.K.: On a generalised approach to first and second order magnetic transitions. Phys. Lett. 12(1), 16–17 (1964)
Dhahri, J., Dhahri, A., Oumezzine, M., et al.: Effect of Sn-do** on the structural, magnetic and magnetocaloric properties of La0.67Ba0.33Mn1−x SnxO3 compounds. J. Magn. Magn. Mater. 320(21), 2613–2617 (2008)
Franco, V., Conde, A.: Influence of Ge addition on the magnetocaloric effect of a Co-containing nanoperm-type alloy. J. Appl. Phys. 103(7), 387–321 (2008)
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This work was supported by the National Nature Science Foundation of China (project no. 51562006).
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He, Q., Zou, Z. & Mao, Z. Study on the Effect of Vacancy Do** on the Magnetocaloric Effect of La0.65−xCa0.35MnO3 (0 ≤ x ≤ 0.15). J Supercond Nov Magn 33, 1137–1142 (2020). https://doi.org/10.1007/s10948-019-05305-3
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DOI: https://doi.org/10.1007/s10948-019-05305-3