Studies of remanence in granular Ni-SiO2 films

Journal of Applied Physics

Volumn 79, Issue 8 PART 2B, 1996, Pages 6137-6139

  Xu, Y ^a,b   Zhao, B ^a   Yan, X ^a  

^a HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY   (Hong Kong)

^b INSTITUTE OF GEOLOGY AND GEOPHYSICS   (China)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000637284     PISSN: 00218979     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.362049     Document Type: Article

References (14)

1. R. A. McCurrie, Ferromagnetic Materials, Structure and Properties (Academic, New York, 1994), or other textbooks on magnetism.
2. T. Nagata, S. Uyeda, and S. Akimoto, J. Geomagn. Geoelectr. 4, 102 (1952); 5, 168 (1953).
3. T. Nagata, S. Uyeda, and S. Akimoto, J. Geomagn. Geoelectr. 4, 102 (1952); 5, 168 (1953).
4. L. Neel, Adv. Phys. 4, 191 (1955).
5. G. Gruzalski, Ph.D. Thesis, University of Nebraska, Lincoln, 1978.
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8. A. Aharoni, J. Appl. Phys. 76, 6977 (1994).
9. X. Yan and Y. Xu, these proceedings.
10. A. B. Pakhomov, X. Yan, and B. Zhao, Appl. Phys. Lett. 67, 3497 (1995).
11. A. B. Pakhomov and X. Yan, these proceedings.
12. K. O'Grady and R. W. Chantrell, in Magnetic Properties of Fine Particles, edited by J. L. Dormann and D. Fiorani (North-Holland, Amsterdam, 1992).
13. B. Zhao, J. Y. Chou, and X. Yan, paper FR-08 of this same conference.
14. There is a discrepancy between ac and remanence measurements in terms of the particle volume by a factor 5 or so. We feel that this is likely due to a small remanent magnetic field in the remanence measurement due to the past magnetic history, causing error in obtaining particle size distribution. Since ac measurements were done with no prior history for both the magnet and the sample, and is therefore more reliable.