Journal of Nanoparticle Research

, Volume 13, Issue 6, pp 2653–2659 | Cite as

Optical and magneto-optical properties of Co–SiOx thin films

  • R. Fermento
  • J. B. González-Díaz
  • A. Cebollada
  • G. Armelles
  • M. Díaz
  • L. Martínez
  • E. Román
  • Y. Huttel
  • C. Ballesteros
Research paper

Abstract

The optical and magneto-optical properties of hybrid Co–SiOx systems are studied as a function of Co concentration. The structures were prepared by alternate depositions of SiOx thin films and layers of 10-nm-diameter Co nanoparticles produced by an Ion Cluster Source. Both optical and magneto-optical constants of the system gradually increase with the amount of Co, though maintaining low optical absorption values in the visible range. The experimental results are well reproduced assuming that the nanoparticles have a cobalt core (7–8 nm in diameter) surrounded by a cobalt oxide shell (1–2 nm thick). The magneto-optical activity versus optical absorption figure of merit of this system is compared with other magneto-optical dielectric systems.

Keywords

Optical Magneto-optical Nanoparticles Co nano-clusters Composite nanomaterial 

References

  1. Abe M, Suwa T (2004) Surface plasma resonance and magneto-optical enhancement in composites containing multicore-shell structured nanoparticles. Phys Rev B 70:235103CrossRefGoogle Scholar
  2. Athey PR, Urban F K III, Tabet MF, Mcgahan WA (1996) Optical properties of cobalt oxide films deposited by spray pyrolysis. J Vac Sci Technol A 14:685–692CrossRefGoogle Scholar
  3. Choueikani F, Royer F, Jamon D, Siblini A, Rousseau JJ, Neveu S, Charara J (2009) Magneto-optical waveguides made of cobalt ferrite nanoparticles embedded in silica/zirconia organic-inorganic matrix. Appl Phys Lett 94:051113CrossRefGoogle Scholar
  4. Clavero C, Cebollada A, Armelles G, Huttel Y, Arbiol J, Peiró F, Cornet A (2005) Size effects in the magneto-optical response of Co nanoparticles. Phys Rev B 72:024441CrossRefGoogle Scholar
  5. Clavero C, Sepúlveda B, Armelles G, Konstantinović Z, García del Muro M, Labarta A, Batlle X (2006) Size mediated control of the optical and magneto-optical properties of Co nanoparticles in ZrO2. J Appl Phys 100:074320CrossRefGoogle Scholar
  6. Clavero C, Armelles G, Margueritat J, Gonzalo J, García del Muro M, Labarta A, Batlle X (2007) Interface effects in the magneto-optical properties of Co nanoparticles in dielectric matrix. Applied Phys Lett 90:182506CrossRefGoogle Scholar
  7. González-Diaz JB, García-Martín A, Armelles G, Navas D, Vázquez Ml, Nielsch K, Wehrspohn RB, Gösele U (2007) Enhanced magneto-optics and size effects in ferromagnetic nanowire arrays. Adv Mater 19:2643CrossRefGoogle Scholar
  8. González-Diaz JB, García-Martín A, García-Martín JM, Cebollada A, Armelles G, Sepullveda B, Alaverdyan Y, Käll M (2008) Plasmonic Au/Co/Au nanosandwiches with enhanced magneto-optical activity. Small 4:202. doi:10.1002/smll.200700594 CrossRefGoogle Scholar
  9. Guerrero H, Rosa G, Morales MP, del Monte F, Moreno EM, Levy D, Pérez del Real R, Belenguer T, Serna CJ (1997) Faraday rotation in magnetic γ-Fe2O3/SiO2 nanocomposites. Appl Phys Lett 71:18CrossRefGoogle Scholar
  10. Huttel Y, Gomez H, Clavero C, Cebollada A, Armelles G, Navarro E, Ciria M, Benito L, Arnaudas JI, Kellock AJ (2004) Cobalt nanoparticles deposited and embedded in AlN: magnetic, magneto-optical, and morphological properties. J Appl Phys 96:1666CrossRefGoogle Scholar
  11. Huttel Y, Navarro E, Telling ND, van der Laan G, Pigazo F, Palomares FJ, Quintana C, Roman E, Armelles G, Cebollada A (2008) Interface alloying effects in the magnetic properties of Fe nanoislands capped with different materials. Phys Rev B 78:104403CrossRefGoogle Scholar
  12. Kahl S, Khartsev SI, Grishin AM, Kawano K, Kong G, Chakalov RA, Abell JS (2002) Structure, microstructure, and magneto-optical properties of laser deposited Bi3Fe5O12/Gd3Ga5O12(111) films. J Appl Phys 91:9556CrossRefGoogle Scholar
  13. Kreibig U, Vollmer M (1995) Optical properties of metal clusters, vol 25. Springer, BerlinGoogle Scholar
  14. Levy O, Stroud D (1997) Maxwell Garnett theory for mixtures of anisotropic inclusions: application to conducting polymers. Phys Rev B 56:8035CrossRefGoogle Scholar
  15. Maxwell-Garnett JC (1904) Colours in metal glasses and in metallic films. Philos Trans Royal Soc A203:385–420. doi:10.1098/rsta.1904.0024 CrossRefGoogle Scholar
  16. Melle S, Menéndez JL, Armelles G, Navas D, Vázquez M, Nielsch KK, Wehrspohn RB, Gösele U (2003) Magneto-optical properties of nickel nanowire arrays. Appl Phys Lett 83:4547CrossRefGoogle Scholar
  17. Menendez JL, Armelles G, Cebollada A, Weller D, Delin A (2000) Optical and magneto-optical properties of highly distorted Fe(100) thin films. Phys Rev B 62:10498CrossRefGoogle Scholar
  18. Menendez JL, Bescós B, Armelles G, Serna R, Gonzalo J, Doole R, Petford-Long AK, Alonso MI (2002) Optical and magneto-optical properties of Fe nanoparticles. Phys Rev B 65:205413CrossRefGoogle Scholar
  19. Navarro E, Huttel Y, Clavero C, Cebollada A, Armelles G (2004) Magnetic coupling between Fe nanoislands induced by capping-layer magnetic polarization. Phys. Rev B 69:224419CrossRefGoogle Scholar
  20. Ozaki S, Kura H, Maki H, Sato T (2009) Size effect in magneto-optical properties of Co nanoparticle dispersed systems. J Appl Phys 105:113913CrossRefGoogle Scholar
  21. Royer F, Jamon D, Rousseau JJ, Roux H, Zins D, Cabuil V (2005) Magneto-optical nanoparticle-doped silica-titania planar waveguides. Appl Phys Lett 86:011107CrossRefGoogle Scholar
  22. Zayat M, del Monte F, del Puerto M, Rosa G, Guerrero H, Serna CJ, Levy D (2003) Highly transparent γ-Fe2O3/Vycor-Glass magnetic nanocomposites exhibiting Faraday Rotation. Adv. Mater 15:1809CrossRefGoogle Scholar
  23. Ziolo RF, Giannelis EP, Weinstein BA, O’Horo MP, Ganguly BN, Mehrotra V, Russell MW, Huffman DR (1992) Matrix-mediated synthesis of nanocrystalline γ-Fe2O3: a new optically transparent magnetic material. Science 257:219CrossRefGoogle Scholar
  24. Zvezdin AK, Kotov VA (1997) Modern magnetooptics and magnetooptical materials. IoP, Bristol, ISBN 075030362 xGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • R. Fermento
    • 1
  • J. B. González-Díaz
    • 1
  • A. Cebollada
    • 1
  • G. Armelles
    • 1
  • M. Díaz
    • 2
  • L. Martínez
    • 2
  • E. Román
    • 2
  • Y. Huttel
    • 2
  • C. Ballesteros
    • 3
  1. 1.IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC)MadridSpain
  2. 2.Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC)MadridSpain
  3. 3.Departamento de FísicaUniversidad Carlos III MadridMadridSpain

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