Magneto-optic ellipsometry characterization of Co and SmCo thin films

Volodymyr Tkachenko, Giancarlo Abbate, Antigone Marino


Magneto-optic ellipsometry in the longitudinal Kerr configuration was performed to determine the complex permittivity tensor of the Co and SmCo thin films within the spectral range from 400nm to 1000nm. The Co film was a middle layer in a Au/Co/Au trilayer structure. Magneto-optical response was analyzed in terms of Mueller matrix elements. Reduced magneto-optical response of the Co layer is explained by influence of the gold top layer of the trilayer structure.

Full Text: PDF

  1. M. Mansuripur, The Physical Principles of Magneto Optical Recording (Cambridge, Cambridge University Press, 1995). CrossRef
  2. B. Sepúlveda, A. Calle, L.M. Lechuga, G. Armelles, "Highly sensitive detection of biomolecules with the magneto-optic surface-plasmon-resonance sensor", Opt. Lett. 31, 1085 (2006). CrossRef
  3. D. Regatos et al., "Au/Fe/Au multilayer transducers for magneto-optic surface plasmon resonance sensing", J.Appl.Phys. 108, 054502 (2010). CrossRef
  4. D. Regatos, B. Sepúlveda, D. Farina, L.G. Carrascosa, L.M. Lechuga, "Suitable combination of noble/ferromagnetic metal multilayers for enhanced magneto-plasmonic biosensing", Opt. Express 19, 8336 (2011). CrossRef
  5. G. Armelle et al., "Localized surface plasmon resonance effects on the magneto-optical activity of continuous Au/Co/Au trilayers", Opt. Express 16, 16104 (2008). CrossRef
  6. C. Hermann, "Surface-enhanced magneto-optics in metallic multilayer films", Phys. Rev. B 64, 235422 (2001). CrossRef
  7. J. B. González-Díaz et al., "Surface-magnetoplasmon nonreciprocity effects in noble-metal/ferromagnetic heterostructures", Phys. Rev. B 76, 153402 (2007). CrossRef
  8. V. V. Temnov et al., "Active magneto-plasmonics in hybrid metal?ferromagnet structures", Nat. Photonics 4(2), 107 (2010). CrossRef
  9. A. Berger, M. R. Pufall, "Generalized magneto-optical ellipsometry", Appl. Phys. Lett. 71, 965 (1997). CrossRef
  10. R. Rauer, G. Neuber, J. Kunze, J. Backstrom, M. Rubhausen, "Temperature-dependent spectral generalized magneto-optical ellipsometry for ferromagnetic compounds", Rev. Sci. Instrum. 76, 023910 (2005). CrossRef
  11. K. Mok, N. Du, H. Schmidt, "Vector-magneto-optical generalized ellipsometry", Rev. Sci. Instrum. 82, 033112 (2011). CrossRef
  12. W.A. McGahan, J.A. Woollam, "Magnetooptics of multilayer systems", Appl. Phys. Commun. 9, 1 (1989).
  13. D.P. Kumah et al., "Optimizing the planar structure of (1 1 1) Au/Co/Au trilayers", J. Phys. D: Appl. Phys. 40, 2699 (2007). CrossRef
  14. L. Alocca et al., "Laser deposition of SmCo thin film and coating on different substrates", Phys. Scr. 78, 058114 (2008). CrossRef
  15. H.G. Tompkins, E.A. Irene, Handbook of Ellipsometry (Norwich, William Andrew, 2005). CrossRef
  16. G. Abbate et al., "Optical characterization of liquid crystals by combined ellipsometry and half-leaky-guided-mode spectroscopy in the visible-near infrared range", J. Appl. Phys. 101, 073105 (2007). CrossRef
  17. Y.V. Knyazev, M.N. Noskov, "OPTICAL PROPERTIES OF GADOLINIUM, SAMARIUM, AND DYSPROSIUM IN THE SPECTRAL RANGE 1.13 TO 3.96 eV.", Phys. Met. Metallogr. 30, 230 (1970).

Full Text:


We use cookies that are necessary for the website to function and cannot be switched off in our systems. Click here for more information.

Photonics Letters of Poland - A Publication of the Photonics Society of Poland
Published in cooperation with SPIE

ISSN: 2080-2242