J Mater Sci Technol ›› 2000, Vol. 16 ›› Issue (02): 197-198.

• Research Articles • Previous Articles     Next Articles

Longitudinal and transverse incremental permeability in Mu-metal thin films

W.S.Cho, T.S.Yoon, C.O.Kim, H.B.Lee   

  1. Division of Material Eng., Chungnam Natl. Univ., Taejon 305-764, Korea...
  • Received:1999-07-02 Revised:1999-08-25 Online:2000-03-28 Published:2009-10-10
  • Contact: W.S.Cho

Abstract: The transverse permeability ratio (TPR) and longitudinal permeability ratio (LPR) as a function of an external field of mumetal films have been investigated in conjunction with the magnetic properties. The mumetal films were prepared by the R.F.magnetron sputtering method in Ar atmosphere. The LPR curve shows the single peak pattern, and the TPR curve shows the double peak pattern indicating the existence of the magnetic anisotropy effect. The magnitude of the incremental permeability are strongly depended on the magnetic softness. The large changes of LPR and TPR in low external fields can be useful for the evaluation of the magnetic softness.

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