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Induced magnetic anisotropy in Fe0.7Co0.3 fine particles

Sebt, S.A ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. DOI: 10.1088/0022-3727/39/23/004
  3. Publisher: 2006
  4. Abstract:
  5. In FeCo fine particles, induced anisotropy has a considerable contribution in increasing the coercivity. We have prepared Fe0.7Co0.3 fine particles by the borohydride method in the presence of various magnetic fields in the range 0 ≤ H0 ≤ 2 kOe. We have studied and analysed the factors affecting the induced anisotropy and magnetic structure of these particles by the use of SEM, XRD and vibrating sample magnetometer. It was found that heat treatment, and also the presence of a magnetic field of about 1 kOe during the grain growth, result in the maximum coercivity of Fe 0.7Co0.3 fine particles. The value of magnetic field intensity should be such that it causes formation of oriented atomic pairs in crystal sites. © 2006 IOP Publishing Ltd
  6. Keywords:
  7. Heat treatment ; Magnetic anisotropy ; Magnetic fields ; Magnetometers ; Scanning electron microscopy ; X ray diffraction analysis ; Borohydride method ; Magnetic field intensity ; Magnetic structure ; Iron compounds
  8. Source: Journal of Physics D: Applied Physics ; Volume 39, Issue 23 , 2006 , Pages 4925-4929 ; 00223727 (ISSN)
  9. URL: https://iopscience.iop.org/article/10.1088/0022-3727/39/23/004/meta