Law of Approach to Magnetic Saturation in Nanocrystalline Pr2Co7Cx(x≤1): Effects of Carbonation

Author:

Yamkane Z.1,Fersi R.2,Rachid F. Z.1,Moubah R.1,Lassri H.1,Mliki N.2,Alleg S.3,Sajieddine M.4,Bessais L.5

Affiliation:

1. LPMMAT, Faculté des Sciences Aïn Chock, Université Hassan II de Casablanca, B.P. 5366 Maârif, Route d’ElJadida, km-8, Casablanca, Morocco

2. Faculté des Sciences de Tunis, Université de Tunis El Manar, LR99ES17, Matériaux Organisation et Propriétés 2092 Tunis, Tunisia

3. LM2S, Département de Physique, Université Badji Mokhtar Annaba, BP 12, 23000 Annaba, Algeria

4. LPM, Faculté des Sciences et Techniques, Université Sultan Moulay Slimane, BP 523, 23000 Béni-Mellal, Morocco

5. Université Paris Est Creteil, Centre National de la Recherche Scientifique, Institut de Chimie et des Matériaux Paris-Est, UMR7182, CNRS, F-94320 Thiais, France

Abstract

We report on the effect of Carbon insertion on the microstructure and magnetic properties of nanocrystalline Pr2Co7Cx([Formula: see text]). The Pr2Co7Cx were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and physical property measurement system (PPMS9) Quantum Design. Mean field theory was utilized to depict the temperature dependence of magnetization and deduce the exchange interactions. The approach to saturation magnetization was as well used. The results were interpreted in the framework of random magnetic anisotropy model. From such analysis, some fundamental parameters were extracted.

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

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