中国物理B ›› 2012, Vol. 21 ›› Issue (4): 47501-047501.doi: 10.1088/1674-1056/21/4/047501

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R. Masrour1 2,M. Hamedoun3 4,A. Benyoussef2 3 4   

  • 收稿日期:2011-08-17 修回日期:2011-11-04 出版日期:2012-02-29 发布日期:2012-02-29
  • 通讯作者: R. Masrour,rachidmasrour@hotmail.com E-mail:rachidmasrour@hotmail.com

The magnetic properties of diluted CoFe2O4 nanomaterials

R. Masroura)b)†, M. Hamedounc)d), and A. Benyoussefb)c)d)   

  1. a. Laboratory of Materials, Processes, Environment and Quality, Cady Ayyed University, National School of Applied Sciences, Route Sidi Bouzid-BP 63 46000 Safi, Morocco;
    b. LMPHE (URAC 12), Faculté des Sciences, Université Mohamed V-Agdal, Rabat, Morocco;
    c. Institute for Nanomaterials and Nanotechnologies, Rabat, MAScIR, Morocco;
    d. Academie Hassan II des Sciences et Techniques, Rabat, Morocco
  • Received:2011-08-17 Revised:2011-11-04 Online:2012-02-29 Published:2012-02-29
  • Contact: R. Masrour,rachidmasrour@hotmail.com E-mail:rachidmasrour@hotmail.com

Abstract: The magnetic properties of (CoxFe1-x)A(Zn1-xFe1+x)BO4 are studied using mean-field theory and the probability distribution law to obtain the saturation magnetization, the coercive field, the critical temperature, and the exchange interactions with different values of D (nm) and x. High-temperature series expansions (HTSEs) combined with the Padé approximant are used to calculate the critical temperature of (CoxFe1-x)A(Zn1-xFe1+x)BO4, and the critical exponent associated with magnetic susceptibility is obtained.

Key words: (CoxFe1-x)A(Zn1-xFe1+x)BO4, probability law, saturation magnetization, coercive field, high-temperature series expansions

中图分类号:  (Exchange and superexchange interactions)

  • 75.30.Et
75.40.Cx (Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.)) 74.25.Ha (Magnetic properties including vortex structures and related phenomena) 75.30.Cr (Saturation moments and magnetic susceptibilities)