Optical and magneto-optical properties of Co–SiOx thin films
Source abstract
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. © Springer Science+Business Media B.V. 2010.
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Research context
OpenAlex topics: Nonlinear Optical Materials Studies · Quantum Dots Synthesis And Properties · Gold and Silver Nanoparticles Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
Show source-provided references
1. Abe M, Suwa T (2004) Surface plasma resonance and magneto-optical enhancement in composites containing multicore-shell structured nanoparticles. Phys Rev B 70:23510310.1103/PhysRevB.70.235103 ↗
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 14:685–69210.1116/1.580372 ↗
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 94:05111310.1063/1.3079094 ↗
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 72:02444110.1103/PhysRevB.72.024441 ↗
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 100:07432010.1063/1.2356799 ↗
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 90:18250610.1063/1.2737126 ↗
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 19:264310.1002/adma.200602938 ↗
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.20070059410.1002/smll.200700594 ↗
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 71:1810.1063/1.120181 ↗
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 96:166610.1063/1.1767975 ↗
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 78:10440310.1103/PhysRevB.78.104403 ↗
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 91:955610.1063/1.1477605 ↗
13. Kreibig U, Vollmer M (1995) Optical properties of metal clusters, vol 25. Springer, Berlin10.1007/978-3-662-09109-8 ↗
14. Levy O, Stroud D (1997) Maxwell Garnett theory for mixtures of anisotropic inclusions: application to conducting polymers. Phys Rev B 56:803510.1103/PhysRevB.56.8035 ↗
15. Maxwell-Garnett JC (1904) Colours in metal glasses and in metallic films. Philos Trans Royal Soc A203:385–420. doi: 10.1098/rsta.1904.002410.1098/rsta.1904.0024 ↗
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 83:454710.1063/1.1630840 ↗
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 62:1049810.1103/PhysRevB.62.10498 ↗
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 65:20541310.1103/PhysRevB.65.205413 ↗
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 69:22441910.1103/PhysRevB.69.224419 ↗
20. Ozaki S, Kura H, Maki H, Sato T (2009) Size effect in magneto-optical properties of Co nanoparticle dispersed systems. J Appl Phys 105:11391310.1063/1.3125321 ↗
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 86:01110710.1063/1.1844038 ↗
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 15:180910.1002/adma.200305436 ↗
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 257:21910.1126/science.257.5067.219 ↗
24. Zvezdin AK, Kotov VA (1997) Modern magnetooptics and magnetooptical materials. IoP, Bristol, ISBN 075030362 x10.1887/075030362X ↗