Structural, magnetic and magnetocaloric properties of TMCeFeO4 (TM = Mn, Co) spinel ferrites powders

被引：25

作者：

Bahhar, S. ^{[1
,2
]}

Boutahar, A. ^{[1
]}

Omari, L. H. ^{[3
]}

Lemziouka, H. ^{[3
,4
]}

Hlil, E. K. ^{[5
]}

Bioud, H. ^{[2
]}

Dhahri, E. ^{[6
]}

机构：

[1] Univ Chouaib Doukkali El Jadida, Ecole Natl Sci Appl, LabSIPE, El Jadida 24002, Plateau, Morocco

[2] Univ Chouaib Doukkali El Jadida, Fac Sci, Lab Instrumentat Mesure & Controle IMC, El Jadida 24002, Plateau, Morocco

[3] Hassan II Univ Casablanca, Fac Sci Ain Chock, LPMMAT, Maarif 5366, Morocco

[4] Sidi Mohamed Ben Abdellah Univ, Fac Sci Dhar El Mahraz, Dept Phys, LPTA, BP 1796, Fes, Morocco

[5] Univ Grenoble Alpes, Inst Neel, Grenoble INP, CNRS, F-38000 Grenoble, France

[6] Univ Sfax, Fac Sci, Lab Phys Appl, BP 1171, Sfax 3000, Tunisia

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2021年 / 539卷

关键词：

Spinel ferrites; Sol-gel method; Magnetocaloric effect; High temperature; Substitution effect; ELECTRICAL-PROPERTIES; ROOM-TEMPERATURE; SINTERING TEMPERATURE; CRITICAL BEHAVIORS; NI; SUBSTITUTION; ENHANCEMENT; DEPENDENCE;

D O I：

10.1016/j.jmmm.2021.168416

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, a successfully synthesized TMCeFeO4 (TM = Mn, Co) by the sol-gel technique has been studied in detail. The structural, magnetic and magnetocaloric properties are performed using an X-ray powder diffrac-tometer and a vibrating sample magnetometer (VSM). X-ray diffraction (XRD) analysis shows that both samples belong to the Fd-3m space group of the cubic spinel crystal system. Moreover, the calculated lattice parameters of MnCeFeO4 and CoCeFeO4 samples are found to be 8.409 angstrom and 8.397 angstrom, respectively. On the other hand, temperature and field dependent magnetization curves demonstrate that both samples exhibit a second-order ferromagnetic (FM)-paramagnetic (PM) phase transition at T-C = 640K and 630K for MnCeFeO4 and CoCe-FeO4, respectively. The maximum of magnetic entropy change (-Delta S-M(max)), calculated from Maxwell relation at an M applied magnetic field change of mu 0 Delta H = 5T, are found to be 0.404 and 0.463JKg(-1)K(-1) corresponding to relative cooling powers (RCPs) about 41.62 and 41.53JKg(-1) for MnCeFeO4 and CoCeFeO4, respectively.

引用

页数：8

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