User menu

Accès à distance ? S'identifier sur le proxy UCLouvain

Low temperature and high magnetic field dependence and magnetic properties of nanocrystalline cobalt ferrite

Primary tabs

Kumar, Lawrence [Central University of Jharkhand] Kumar, Pawan [Indian Institute of Technology Patna] Srivastava, S. K. [UCL] Kar, Manoranjan [Indian Institute of Technology Patna]

The DC magnetic hysteresis loop measurements were carried out for temperatures varying from 5 to 300 K over a field range of ±10 T on nanocrystalline ( 35 nm) cobalt ferrite samples (crystallized to Fd 3 m Fd\bar {3} m space group with cubic symmetry) to validate the law of approach at low temperature for the nanocrystalline cobalt ferrite. A magnetocrystalline anisotropy constant and saturation magnetization have been obtained by analyzing the magnetization curve in saturation using the "law of approach (LA) to saturation." The magnetocrystalline anisotropy constant is found to be almost constant in the temperature range of 5 to 150 K due to the freezing of spin at low temperature. Also, spin freezing leads to a decrease of coercivity with the increase in the temperature.

Document type Article de périodique (Journal article) – Article de recherche
Publication date 2014
Language Anglais
Journal information "Journal of Superconductivity and Novel Magnetism" - Vol. 27, no.7, p. 1677-1681 (2014)
Publisher Springer Nature
issn 1557-1939
e-issn 1557-1947
Publication status Publié
Affiliation UCL - SST/IMCN - Institute of Condensed Matter and Nanosciences
Links
  1. Batlle Xavier, Labarta Amílcar, Finite-size effects in fine particles: magnetic and transport properties, 10.1088/0022-3727/35/6/201
  2. Kodama R.H, Magnetic nanoparticles, 10.1016/s0304-8853(99)00347-9
  3. Valenzuela Raul, Magnetic ceramics, ISBN:9780511600296, 10.1017/cbo9780511600296
  4. Haneda K., Morrish A. H., Noncollinear magnetic structure of CoFe2O4small particles, 10.1063/1.340197
  5. Liu Chao, Zou Bingsuo, Rondinone Adam J., Zhang Z. John, Chemical Control of Superparamagnetic Properties of Magnesium and Cobalt Spinel Ferrite Nanoparticles through Atomic Level Magnetic Couplings, 10.1021/ja000784g
  6. Zhang Z. John, Wang Zhong L., Chakoumakos Bryan C., Yin Jin S., Temperature Dependence of Cation Distribution and Oxidation State in Magnetic Mn−Fe Ferrite Nanocrystals, 10.1021/ja973085l
  7. Rajendran M., Pullar R.C., Bhattacharya A.K., Das D., Chintalapudi S.N., Majumdar C.K., Magnetic properties of nanocrystalline CoFe2O4 powders prepared at room temperature: variation with crystallite size, 10.1016/s0304-8853(01)00151-2
  8. Chikazumi, S.: Physics of Ferromagnetism. Oxford University Press, Oxford (1997)
  9. Shenker Henry, Magnetic Anisotropy of Cobalt Ferrite (Co1.01Fe2.00O3.62) and Nickel Cobalt Ferrite (Ni0.72Fe0.20Co0.08Fe2O4), 10.1103/physrev.107.1246
  10. Melikhov Y., Snyder J. E., Jiles D. C., Ring A. P., Paulsen J. A., Lo C. C. H., Dennis K. W., Temperature dependence of magnetic anisotropy in Mn-substituted cobalt ferrite, 10.1063/1.2151793
  11. Melikhov Y., Snyder J.E., Lo C.C.H., Matlage P.N., Song S.H., Dennis K.W., Jiles D.C., The Effect of Cr-Substitution on the Magnetic Anisotropy and Its Temperature Dependence in Cr-Substituted Cobalt Ferrite, 10.1109/tmag.2006.879888
  12. Ranvah N., Nlebedim I.C., Melikhov Y., Snyder J.E., Williams P.I., Moses A.J., Jiles D.C., Temperature Dependence of Magnetic Properties of CoAl$_{\rm x}$Fe$_{2-{\rm x}}$O$_{4}$, 10.1109/tmag.2009.2024767
  13. Kumar Lawrence, Kumar Pawan, Kar Manoranjan, Cation distribution by Rietveld technique and magnetocrystalline anisotropy of Zn substituted nanocrystalline cobalt ferrite, 10.1016/j.jallcom.2012.10.009
  14. Jain Santosh, Parashar Jetendra, Kurchania Rajnish, Effect of magnetic field on terahertz generation via laser interaction with a carbon nanotube array, 10.1186/2228-5326-3-1
  15. Kumar Lawrence, Kar Manoranjan, Effect of Annealing Temperature and Preparation Condition on Magnetic Anisotropy in Nanocrystalline Cobalt Ferrite, 10.1109/tmag.2011.2151841
  16. Kumar Lawrence, Kar Manoranjan, Influence of Al3+ion concentration on the crystal structure and magnetic anisotropy of nanocrystalline spinel cobalt ferrite, 10.1016/j.jmmm.2011.03.010
  17. Kumar Lawrence, Kar Manoranjan, Effect of Ho3+substitution on the cation distribution, crystal structure and magnetocrystalline anisotropy of nanocrystalline cobalt ferrite, 10.1080/17458080.2012.661474
  18. Gopalan E. Veena, Al-Omari I. A., Kumar D. Sakthi, Yoshida Yasuhiko, Joy P. A., Anantharaman M. R., Inverse magnetocaloric effect in sol–gel derived nanosized cobalt ferrite, 10.1007/s00339-010-5573-8
  19. Cullity, B.D., Graham, C.D.: Introduction to Magnetic Materials. Addison-Wesley, Oxford (2009)
Bibliographic reference Kumar, Lawrence ; Kumar, Pawan ; Srivastava, S. K. ; Kar, Manoranjan. Low temperature and high magnetic field dependence and magnetic properties of nanocrystalline cobalt ferrite. In: Journal of Superconductivity and Novel Magnetism, Vol. 27, no.7, p. 1677-1681 (2014)
Permanent URL http://hdl.handle.net/2078.1/201856