High-frequency tunneling magnetic loss in soft ferrites

IEEE Transactions on Magnetics

Volumn 43, Issue 3, 2007, Pages 968-973

  Roshen, Waseem A ^a  

^a OHIO STATE UNIVERSITY   (United States)

Author keywords

Eddy currents; Electric fields; Ferrite devices; Ferrites; Ferromagnetic materials; Granular materials; Inductors; Losses; Magnetic losses; Power conversion; Power electronics; Power transformers

Indexed keywords

EDDY CURRENTS; ELECTRIC FIELDS; ELECTRIC INDUCTORS; FERRITE DEVICES; FERRITES; FERROMAGNETIC MATERIALS; GRANULAR MATERIALS; POWER ELECTRONICS; POWER TRANSFORMERS;

EDDY-CURRENT LOSS MECHANISM; FLUX DENSITIES; POWER CONVERSION;

MAGNETIC LEAKAGE;

EID: 33847717867     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2006.882750     Document Type: Article

References (23)

1. E. C. Snelling, Soft Ferrites: Application and Properties, 2nd ed. London, U.K.: Butterworth, 1988.
2. W. A. Roshen, R. L. Steigerwald, R. J. Charles, W. G. Earls, G. S. Claydon, and C. F. Saj, "High-efficiency, high-density MHz magnetic components for low profile converters," IEEE Trans. Ind. Appl., vol. 31, no. 4, pp. 869-877, Jul./Aug. 1995.
3. T. Sano, A. Morita, and A. Motsukawa, "A new high-frequency power ferrite for high-frequency switching power supplies," in Proc, HFPC Conf., San Diego, CA, May 1988, pp. 85-99.
4. A. Goldberg, Modern Ferrite Technology. New York: Springer-Verlag, 2006.
5. G. Bertotti, Hysteresis in Magnetism for Physicists, Material Scientists, and Engineers. New York: Academic, 1998.
6. R. M. Bozorth, Ferroomagnetism. New York: IEEE Press, 2003.
7. W. A. Roshen, "Ferrite core loss for power magnetic component design," IEEE Trans. Magn., vol. 27, no. 6, pp. 4407-4415, Nov. 1991.
8. -, "Low-loss, high-frequency composite magnetic material," U.S. Patent 6 660 412, 2003.
9. _, "Methods of making low-loss, high-frequency composite magnetic material," U.S. Patent 6931713, 2005.
10. Magnetic Ferrites, Ferrite Cores-Catalog, Magnetics, 2000.
11. H. J. Williams, W. Shockley, and C. Kittel, "Studies of propagation properties of a ferromagnetic domain boundary," Phys. Rev., vol. 80, pp. 1090-1094, 1950.
12. R. H. Pry and C. P. Bean, "Calculations of energy loss in magnetic sheet material," J. Appl. Phys., vol. 29, pp. 532-533, 1958.
13. G. Bertotti, "Space-time correlation of magnetization process and eddy current losses: Application I: Fine wall spacing," J. Appl. Phys., vol. 55, pp. 4339-4348, 1988.
14. _, "Space-time correlation of magnetization process and eddy current losses: Application I: Large wall spacing," J. Appl. Phys., vol. 55, pp. 4348-4355, 1988.
15. _, "Some consideration on the physical interpretation of eddy current losses in the ferromagnetic materials," J. Magn. Magn. Mater., vol. 54-57, pp. 1556-1560, 1986.
16. P. Sheng and B. Abeles, "Voltage-induced tunneling conduction in granular metals at low temperature," Phys. Rev. Lett., vol. 28, pp. 34-36, 1972.
17. B. Abeles, P. Sheng, M. D. Coutts, and Y. Arie, "Structural and electrical properties of granular metal films," Adv. Phys., vol. 24, pp. 407-461, 1975.
18. E. K. Sichel, J. I. Gittleman, and P. Sheng, Carbon Black-Polymer Composites, E. K. Sichel, Ed. New York: Marcel Dekker, 1982.
19. K. B. Efetov and A. Tsscherisich, "Transition from insulating to noninsulating temperature dependence of the conductivity in granular metals," Europhys. Lett., vol. 59, pp. 114-120, 2002.
20. W. A. Roshen, "Non-linear tunneling charge transport in soft ferrites," J, Magn. Magn. Mater., 2007, accepted for publication.
21. Y. Melikhov, J. E. Snyder, C. C. H. Lo, P. N. Maltage, S. H. Song, K. W. Dennis, and D. C. Jiles, "The effect of Cr-substitution on the magnetic anisotropy and its temperature dependence in Cr-substituted cobalt ferrites," IEEE Trans. Magn., vol. 42, no. 10, pp. 2861-2863, Oct. 2006.
22. C. C. Lo, A. P. Ring, J. E. Snyder, and D. C. Jiles, "Improvement of magnetomechanical properties of cobalt ferrite by magnetic annealing," IEEE Trans. Magn., vol. 41, no. 10, pp. 3676-3678, Oct. 2005.
23. E. R. Kinser, C. C. Lo, A. J. Barsic, and D. C. Jiles, "Modeling microstructural effects on Barkhausen emission in surface-modified magnetic materials," IEEE Trans. Magn., vol. 41, no. 10, pp. 3292-3294, Oct. 2005.