RefractiveIndex.INFO

Refractive index database


Shelf

Book

Page

Optix.eXpert

Optix.eXpert is our new website that aims at connecting optical professionals with employers looking to outsource optics related work. Sign up and post a listing now to start offering a service.

Optical constants of Ni-Fe (Nickel-iron alloy, Permalloy)
Tikuišis et al. 2017: n,k 0.193-1.69 µm; gold-coated, 10 nm

Wavelength: µm
 (0.1930 – 1.6900)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Comments

10 nm thick Permalloy (80% nickel, 20% iron) film with protective 3 nm thick gold 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