Structural, magnetic, magnetocaloric effect and critical behaviour study of NiCeFeO4 spinel ferrite

被引：20

作者：

Bahhar, S. ^{[1
]}

Boutahar, A. ^{[1
]}

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

Lemziouka, H. ^{[3
]}

Hlil, E. K. ^{[4
]}

Bioud, H. ^{[2
]}

机构：

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

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

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

[4] Univ Grenoble Alpes, CNRS, Grenoble INP, Inst Neel, Grenoble, France

来源：

SOLID STATE COMMUNICATIONS | 2020年 / 322卷

关键词：

Spinel ferrite; Magnetic properties; Critical exponents; 3D heisenberg model; EQUATION-OF-STATE; ROOM-TEMPERATURE; NICKEL; SUBSTITUTION;

D O I：

10.1016/j.ssc.2020.114056

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report the structural, magnetic, magnetocaloric properties, and the critical behavior of the NiCeFeO4 spinel ferrite synthesized via the sol-gel method. The XRD analysis has revealed that NiCeFeO4 belongs to the Fd-3m space group of the cubic spinel structure. Furthermore, magnetic properties demonstrate that the prepared sample undergoes a second-order ferromagnetic-paramagnetic (FM-PM) phase transitions at T-C = 640 K. Moreover, it was found that the maximum magnetic entropy change(-Delta S-M(max)) at an applied magnetic field of 5 T is about 0.43 J kg(-1)K(-1), corresponding to relative cooling powers (RCP) of 70.4 J kg(-1). Finally, employing various experimental and theoretical techniques, the critical exponents deduced (beta, gamma and delta) in this study were observed to follow the Heisenberg theory in three dimensions, signifying short-range ferromagnetic interactions.

引用

页数：7

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