Tham khảo Độ_từ_thẩm

  1. ↑ Derek Craik (1995). Magnetism: Principles and Applications. John Wiley & Sons. ISBN 0-471-92959-X. 
  2. ↑ Y. Yoshizawa, Nanocrystalline soft magnetic materials in Handbook of Advanced Magnetic Materials ed. by Y. Liu et al., Vol. 4, Springer, 2006, ISBN-10 1-4020-7983-4.
  3. ↑ Herzer, Grain size dependence of coercivity and permeability innanocrystalline ferromagnets, IEEE Trans. Magn. 26 (1990) 1397-1402.