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Optical constants of Ni-Fe (Nickel-iron alloy, Permalloy)
Tikuišis et al. 2017: n,k 0.193-1.69 µm; bare, 150 nm

Wavelength: µm
 (0.1930 – 1.6900)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Comments

150 nm thick bare Permalloy (80% nickel, 20% iron) film with 2.3 nm oxide layer on top. Room temperature. Obtained by multi-angle spectroscopic ellipsometry.

References

K. K. Tikuišis, L. Beran, P. Cejpek, K. Uhlířová, J. Hamrle, M. Vaňatka, M. Urbánek, M. Veis. Optical and magneto-optical properties of permalloy thin films in 0.7-6.4 eV photon energy range, Mater. Des. 114, 31-39 (2017) (Numerical data kindly provided by Kristupas Kazimieras Tikuišis)

Data

[CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

Nickel-Iron alloys, Ni-Fe

Other names and abbreviations

  • nickel–iron alloy
  • FeNi
  • NiFe

Popular alloys

  • Invar (~36% Ni, low thermal expansion)
  • Permalloy (~80% Ni, highly magnetic)

External links