Optical constants of transition metals: Ti, V, Cr, Mn, Fe, Co, Ni, and Pd

Johnson, P. B.; Christy, R. W.

doi:10.1103/physrevb.9.5056

Cited by 1,548 publications

(566 citation statements)

References 24 publications

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“…It has been shown that, for semiconductor multilayers, deconvolution of the surface and interface contributions is possible using such models [18]. The tabulated bulk dielectric functions for Au and W [17], and for Fe [19] were used, together with the dielectric function of the Au capping layer determined from the VASE measurements. There are a maximum of 6 parameters (ω 0,i ,A i and i , for i = x, y) that can be adjusted to give optimal values by least squares fitting to the measured RAS response.…”

Section: Methodsmentioning

confidence: 99%

“…The confidence interval of the fits is given for all free parameters. Parameters fixed for all fits are the thickness d of the oscillator layer (3Å), the dielectric functions for W and Fe (taken from [17] and [19]), and the thin film Au dielectric function and thickness derived from the VASE measurements (see figure 1). Numbers in italics were kept fixed in a particular fit.…”

Section: Integer Monolayers Of Fe and Comparison With The Uncapped Sumentioning

confidence: 99%

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Optical reflectance anisotropy of buried Fe nanostructures on vicinal W(110)

Fleischer

Carroll

Smith

et al. 2007

J. Phys.: Condens. Matter

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The optical anisotropy of Au protected Fe layers grown on a vicinal W(110) surface has been investigated using reflectance anisotropy spectroscopy (RAS). Iron nanostripes formed at submonolayer coverage, as well as Fe layers up to 3 ML coverage, were protected by 12 and 16 nm gold caps and measured ex situ under ambient conditions. The RAS is dominated by structures originating in the interfacial W(110) region, modified by the absorption in the Au cap and possibly by uniaxial strain in the Au cap itself. The Fe nanostructures themselves do not produce a significant RAS signature but, nevertheless, differences with Fe coverage were identified and explained in terms of a simple isotropic Fe absorbing layer, together with strain relief in the W/Fe/Au interfacial region.

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Section: Methodsmentioning

confidence: 99%

Section: Integer Monolayers Of Fe and Comparison With The Uncapped Sumentioning

confidence: 99%

Optical reflectance anisotropy of buried Fe nanostructures on vicinal W(110)

Fleischer

Carroll

Smith

et al. 2007

J. Phys.: Condens. Matter

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“…For the best fit to the experimentally determined dielectric function of Ni published by Johnson & Christy 7 , we used the following parameters: ε ∞ =3.6 eV; ω P =11.7 eV; γ c =1.4 eV; G 0 =4.6; ω 0 =4.9 eV; Γ=3.5 eV.…”

Section: Drude-lorentz Model Of the Nickel Dielectric Functionmentioning

confidence: 99%

Plasmon–Interband Coupling in Nickel Nanoantennas

et al. 2014

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Plasmonic excitations are usually attributed to the free electron response at visible frequencies in the classic plasmonic metals Au and Ag. However, the vast majority of metals exhibit spectrally localized interband transitions or broad interband transition backgrounds in the energy range of interest for nanoplasmonics. Nevertheless, the interaction of interband transitions with localized plasmons in optical nanoantennas has hitherto received relatively little attention -probably because interband transitions are regarded as highly unwanted due to their

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“…3) by dipole approximation of the Mie theory [15]. For calculations optical constants of bulk cobalt were taken from [16].…”

Section: Preparation Of Samplesmentioning

confidence: 99%

Evaluation of Optical Properties of Ag, Cu, and Co Nanoparticles Synthesized in Organic Medium

Kaminskienė¹,

Prosyčevas²,

Stonkutė

et al. 2013

Acta Phys. Pol. A

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The surface plasmon resonance evaluation of colloidal metal nanoparticles, synthesized in organic medium, is reported in this work. Metal salts were dissolved in dioxane/AOT solution and reduced by hydrazine hydrate under vigorous stirring. Optical properties of obtained colloidal nanoparticles were investigated by UV VIS spectroscopy. Theoretical predictions of optical properties of metal nanoparticles were made by means of the Mie theory and the Drude free-electron model. Geometrical parameters and distribution of metal nanoparticles in colloidal solutions were characterized by atomic force microscopy. The results show that Ag, Cu, and Co nanoparticles, synthesized in organic medium distinguish plasmonic properties. Surface plasmon resonance bands were obtained in all cases: Ag at 430 nm, Cu at 570 nm, Co at 350 nm (SPR1) and 430 nm (SPR2). Comparing theoretical evaluation of nanoparticles size with atomic force microscopy analysis, we can assume that our calculations are accurate. It was found that dominating nanoparticles diameter in Ag colloidal solution is ≈ 150 nm, in Cu colloidal solution is ≈ 70 80 nm and in Co colloidal solution is ≈ 150 nm. It can be concluded that nanoparticles with enhanced plasmonic properties synthesized in organic medium can be widely used in order to increase e ciency of various optical elements.

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Optical constants of transition metals: Ti, V, Cr, Mn, Fe, Co, Ni, and Pd

Cited by 1,548 publications

References 24 publications

Optical reflectance anisotropy of buried Fe nanostructures on vicinal W(110)

Optical reflectance anisotropy of buried Fe nanostructures on vicinal W(110)

Plasmon–Interband Coupling in Nickel Nanoantennas

Evaluation of Optical Properties of Ag, Cu, and Co Nanoparticles Synthesized in Organic Medium

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