EXPLORING THE INFLUENCE OF B-SITE DOPANTS ON STRUCTURAL AND MAGNETIC PROPERIES IN La0.8Ag0.2Mn1-XCoxO3 (x: 0 and 0.1) COMPOUNDS

Year 2024, , 54 - 62, 30.06.2024

Barış Altan , Yavuz Selim Ak , Atilla Coşkun

https://doi.org/10.47137/uujes.1491191

Abstract

This study examines the structural, electrical, magnetic, and magnetocaloric properties of La0.8Ag0.2Mn0.9A0.1O3 (A: Mn, and Co) compounds under doping in the B-site. XRD results show that the compound containing Co ions directly replaced Mn ions in the B-site without forming a secondary phase containing higher metallic Ag impurities. The data obtained using Scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS), the temperature dependence of magnetization (M-T), the magnetic field dependence of magnetization (M-H), and the magnetic entropy change (SM) analysis reveal the effect of the doped element on the magnetic properties of the compounds due to the changes they create in the structural and Mn3+/Mn4+ ratio. It has been determined that the paramagnetic to ferromagnetic transition temperature (Curie temperature, TC) of the La0.8Ag0.2Mn0.9Co0.1O3 (LAMO-Co) is quite lower than the LAMO.

Keywords

Sol-gel, XRD refinement, Magnetization

Project Number

We gratefully acknowledge the support of the Muğla Sıtkı Koçman University Scientific Research Support and Funding Office (BAP) under Grant Contract No: 19/077/01/1/1 for funding this research.

References

• Adapa SR, Feng T, Ihnfeldt RV, Chen R. Optimisation of a packed particle magnetocaloric refrigerator: A combined experimental and theoretical study. International Journal of Refrigeration, 2024;159:64–73.
• Kitanovski A. Energy applications of magnetocaloric materials. Adv. Energy Mater., 2020;10:1903741–1903778.
• Pecharsky VK, Jr. Gschneidner KA. Giant magnetocaloric effect in Gd5(Si2Ge2). Physical Review Letters, 1997;78(23):4494-4497.
• Khadhraoui S, Baazaoui M, Hsini M, Oumezzine M. Study and modeling of the magnetocaloric effect in the La0.67Ba0.33Mn0.9Fe0.1O3 compound. Journal of Superconductivity and Novel Magnetism, 2019;32:291-300.
• Pekała M, Drozd V. Magnetocaloric effect in La0.8Sr0.2MnO3 manganite. Journal of Alloys and Compounds, 2008;45:30–33.
• Çetin SK, Acet M, Güneş M, Ekicibil A, Farle M. Magnetocaloric effect in (La1−xSmx)0.67Pb0.33MnO3 (0 ≤ x ≤ 0.3) manganites near room temperature. Journal of Alloys and Compounds, 2015;650(25):285-294.
• Mnefgui S, Zaidi N, Dhahri N, Dhahri J, Hlil EK. Electrical transport properties and transport–entropy correlations in La0.57Nd0.1Sr0.33MnO3 manganite. Journal of Magnetism and Magnetic Materials, 2015;384:219-223.
• Jr. Gschneidner KA, Pecharsky VK, Zimm C. New materials for magnetic refrigeration promise cost effective, environmentally sound air conditioners, refrigerators/freezers, and gas liquefiers. Materials Technology, 1997;12(5-6):145-149.
• Bruck E. Developments in magnetocaloric refrigeration. J. Phys. D: Appl. Phys., 2005;38:381-391.
• Pecharsky VK, Jr. Gschneidner KA. Tunable magnetic regenerator alloys with a giant magnetocaloric effect for magnetic refrigeration from ∼20 to ∼290 K. Appl. Phys. Lett., 1997;70:3299-3301.
• Xu Y, Memmert U, Hartmann U. Magnetic field sensors from polycrystalline manganites. Sensors and Actuators A: Physical, (2001);91(1–2):26-29.
• Balevičius S, Novickij J, Abrutis A, Kiprijanovič O, Anisimovas F, Šimkevičius Č, Stankevič V, Vengalis B, Žurauskienė N, Altgilbers LL. Manganite based strong magnetic field sensors used for magnetocumulative generators. Materials Science Forum, 2002;384(38):297–300.
• Szymczak R, Czepelak M, Kolano R, Kolano-Burian A, Krzymanska B, Szymczak H. Magnetocaloric effect in La1–xCaxMnO3 for x = 0.3, 0.35, and 0.4. J Mater Sci., 2008;43:1734–1739.
• Hou DL, Yue CX, Bai Y, Liu QH, Zhao XY, Tang GD. Magnetocaloric effect in La0.8−xNdxNa0.2MnO3. Solid State Communications, 2006;140(9–10):459-463.
• Dinesen AR, Linderoth S, Mørup S. Direct and indirect measurement of the magnetocaloric effect in a La0.6Ca0.4MnO3 ceramic perovskite. Journal of Magnetism and Magnetic Materials, 2002;253:28-34.
• Jemaa FB, Mahmood S, Ellouze M, Hlil E, Halouani F. Structural, magnetic, and magnetocaloric studies of La0.67Ba0.22Sr0.11Mn1−xCoxO3 manganites. Journal of Materials Science, 2015;50:620–633.
• Quintero M, Sacanell J, Ghivelder L, Gomes AM, Leyva AG, Parisi F. Magnetocaloric effect in manganites: metamagnetic transitions for magnetic refrigeration. Appl. Phys. Lett., 2010;97:121916.
• Kuepper K, Falub MC, Prince KC, Galakhov VR, Troyanchuk IO, Chiuzbaian SG, Matteucci M, Wett D, Szargan R, Ovechkina NA, Mukovskii YaM, Neumann M. Electronic structure of A-site and B-site doped lanthanum manganites: a combined X-ray spectroscopic study. J. Phys. Chem. B, 2005;109(19):9354–9361.
• Khalyavin DD, Pekala M, Bychkov GI, Shiryaev SV, Barilo SN, Troyanchuk IO, Mucha JM, Szymczak R, Baran M, Szymczak HJ. Magnetotransport properties of flux melt grown single crystals of Co-substituted manganites with perovskite structure. Phys.: Condens. Matter, 2003;15:925.
• Demeter M, Neumann M, Galakhov VR, Ovechkina NA, Kurmaev EZ, Labachevskaya NI. Electronic structure of doped La-Mn-O perovskites. Acta Physica Polonica A, (2000);98(5):587-591.
• Klyushnikov OI, Sal’nikov VV, Bogdanovich NM. X-ray photoelectron spectra of La0.7Ca0.3MnO3 and La0.7Ca0.3Mn0.97Cu0.03O3 perovskite oxides. Inorg. Mater., 2002;38(3):261–264.
• Pi L, Zheng L, Zhang Y. Transport mechanism in polycrystalline La0.825Sr0.175Mn1-xCuxO3, Phys. Rev. B 2000;61:(13).
• Zhou HD, Li G, Xu XY, Feng SJ, Qian Y, Li XG. Transport and magnetic properties in La0.7Ca0.3Mn1-xCuxO3, Mater. Chem. Phys., 2002;75:140–143.
• Coşkun A, Irmak AE, Altan B, Ak YS, Coşkun AT. Tuning the magnetic and magnetocaloric properties of a compound via mixing (1–x).La0.67Ca0.33MnO3 +x.La0.67Sr0.33MnO3 (x = 0, 0.25, 0.50, 0.75, 1): composite materials or composite compounds?. Journal of Magnetism and Magnetic Materials, 2023;584:171104.
• Zhang N, Geng T, Cao HX, Boa JC. Chemical composition and magnetism of Ag doped LaMnO3. Chin. Phys. B, 2008;17:317–322.
• Zang T, Gu KM, Cao QQ, Wang DH, Zhang SY, Du YW. Magnetocaloric properties of Ag-substituted perovskite-type manganites. J. Magn. Magn. Mater., 2000;222(1-2):110–114.
• Abozied AET, Ghani AA, Ali AI, Salaheldin TA. Structure, magnetic and magnetocaloric properties of nano crystalline perovskite La0.8Ag0.2MnO3. Journal of Magnetism and Magnetic Materials, 2019;479:260-267.
• Gamzatov AG, Aliev AM, Batdalov AB, Abdulvagidov ShB, Mel’nikov OV, Gorbenko Oyu. Magnetocaloric effect in silver-doped lanthanum manganites. Technical Physics Letters, 2006;32(6):471–473.
• Tang T, Gu KM, Cao QQ, Wang DH, Zhang SY, Du YW. Magnetocaloric properties of Ag-substituted perovskite-type manganites. Journal of Magnetism and Magnetic Materials, 2000;222(1–2):110-114.
• Troyanchuk IO, Lobanovsky LS, Khalyavin DD, Pastushonok SN, Szymczak H. Magnetic and magnetotransport properties of Co-doped manganites with perovskite structure. Journal of Magnetism and Magnetic Materials, 2000;210(1–3):63-72.
• Kundu AK, Pralong V, Raveau B, Caignaert V. Magnetic and electrical properties of ordered 112-type perovskite LnBaCoMnO5+δ (Ln = Nd, Eu). J. Mater. Sci., 2011;46:681–687.
• Chang CL, Tai MF, Chung TW, Lee FY, Su YW, Liu SY, Hwang CS, Tseng PK, Shi JB. X-ray absorption spectroscopy study of the La0.7Ba0.3Mn1−xCoxO3 system. Journal of Magnetism and Magnetic Materials, 2000;209(1–3):240-242.