Electronic properties of (3/2×3/2)-Na/Cu(111)

Politano, Antonio; Agostino, R. G.; Colavita, E.; Formoso, V.; Chiarello, G.

doi:10.1016/j.elspec.2007.08.005

Cited by 7 publications

(2 citation statements)

References 39 publications

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“…Thin films exhibit physical properties that are distinct from their bulk counterparts as a consequence of quantum size effects and electron quantum confinement [19][20][21][22][23][24][25]. They are a unique class of nanosystems, whose electronic properties can be easily tuned upon controlling the thickness of the film at the atomic level.…”

Section: Introductionmentioning

confidence: 99%

Interplay of structural and temperature effects on plasmonic excitations at noble-metal interfaces

Politano

2012

Philosophical Magazine

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The interplay of structural and electronic properties on plasmon modes was investigated for a thin Ag film grown at room temperature on Cu(111). Surface plasmons are confined within Ag grains, as indicated by the analysis of their dispersion relationship, which is dispersionless up to a critical wave-vector. Surface plasmon confinement is removed upon annealing at 400 K. The thermal treatment induces a flattening of the Ag adlayer with a merging of Ag islands, and, moreover, a strong enhancement of surface conductivity.

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Section: Introductionmentioning

confidence: 99%

Interplay of structural and temperature effects on plasmonic excitations at noble-metal interfaces

Politano

2012

Philosophical Magazine

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“…[1][2][3][4][5][6][7][8][9] They are a unique class of nanosystems, whose electronic properties can be easily tuned upon controlling the thickness of the film at the atomic level. This interest is accounted for, on the one hand, the lack of information on such systems compared with bulk crystals, and, on the other, the broad potential application of nanoscopic structures in nanoelectronics.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Modes Confined in Nanoscale Thin Silver Films Deposited onto Metallic Substrates

Politano¹,

Formoso²,

Chiarello³

2010

J. Nanosci. Nanotech.

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Collective electronic excitations in nanoscale thin Ag layers adsorbed on Cu(111) and Ni(111) at room temperature have been investigated by high-resolution electron energy loss spectroscopy. Surface plasmon was found to be confined within grains on Ag thin films on Cu(111) nanostructured in islands. Annealing removed surface plasmon confinement and induced a negative linear term of the dispersion relation. On the other hand, on flat thin films on Ni(111) the dispersion of Ag surface plasmon is fully quadratic. Landau damping processes of the plasmonic excitation were found to be dependent on the growth mode. Ag multipole surface plasmon at 7.7 eV was observed only under stringent kinematic conditions enhancing surface sensitivity.

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Enhancement of hydrolysis in alkali ultrathin layers on metal substrates in the presence of electron confinement

Politano

Chiarello

2010

Chemical Physics Letters

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Electronic properties of (3/2×3/2)-Na/Cu(111)

Cited by 7 publications

References 39 publications

Interplay of structural and temperature effects on plasmonic excitations at noble-metal interfaces

Interplay of structural and temperature effects on plasmonic excitations at noble-metal interfaces

Plasmonic Modes Confined in Nanoscale Thin Silver Films Deposited onto Metallic Substrates

Enhancement of hydrolysis in alkali ultrathin layers on metal substrates in the presence of electron confinement

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