Erratum: Electron-Phonon Coupling and its Evidence in the Photoemission Spectra of Lead [Phys. Rev. Lett.<b>91</b>, 186406 (2003)]

Reinert, F.; Eltner, B.; Nicolay, G.; Ehm, D.; Schmidt, S.; Hüfner, S.

doi:10.1103/physrevlett.92.089904

Cited by 15 publications

(18 citation statements)

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“…24. Similar data have been reported recently for Pb(1 1 0) [139]. For more details on theory and the interpretation of Im S concerning the G surface states on noble metals see Section 6.1.…”

Section: Other Materialssupporting

confidence: 70%

Decay of electronic excitations at metal surfaces

Echenique

Berndt

Chulkov

et al. 2004

Surface Science Reports

438

403

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Section: Other Materialssupporting

confidence: 70%

Decay of electronic excitations at metal surfaces

Echenique

Berndt

Chulkov

et al. 2004

Surface Science Reports

438

403

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“…From a linear least-squares fit of the temperature dependence we obtain here λ ≈ 0.7, which would indicate a very strong electron-phonon coupling. This is not far from characteristic values of typical superconducting metals (λ ≈ 1) [41] or C60-systems [42][43][44] where also a characteristic satellite structure was observed. The coupling parameter within the metal substrate, on the other hand, is only of the order of λ ≈ 0.1 [45].…”

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confidence: 47%

Low-energy scale excitations in the spectral function of organic monolayer systems

et al. 2012

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Using high-resolution photoemission spectroscopy we demonstrate that the electronic structure of several organic monolayer systems, in particular 1,4,5,8-naphthalene tetracarboxylic dianhydride and Copper-phtalocyanine on Ag(111), is characterized by a peculiar excitation feature right at the Fermi level. This feature displays a strong temperature dependence and is immediatly connected to the binding energy of the molecular states, determined by the coupling between the molecule and the substrate. At low temperatures, the line-width of this feature, appearing on top of the partly occupied lowest unoccupied molecular orbital of the free molecule, amounts to only ≈ 25 meV, representing an unusually small energy scale for electronic excitations in these systems. We discuss possible origins, related e.g. to many-body excitations in the organic-metal adsorbate system, in particular a generalized Kondo scenario based on the single impurity Anderson model. For more than twenty years there has been a thorough investigation on π-conjugated organic molecules, which have shown to be suitable for the application in organic electronic devices [1][2][3]. These molecules often form long-range ordered films on single-crystalline metal substrates, allowing a systematic and fundamental study by various surface sensitive techniques. In particular from electron spectroscopy methods, as photoemission spectroscopy (PES), inverse photoemission (IPES), and x-ray absorption (XAS), deep insight into many important features of the electronic properties of condensed films and their interfaces has been achieved [4][5][6][7][8]. The latter are of particular importance since they crucially determine the properties of possible devices. Additional microscopic and spectroscopic information has been obtained by use of scanning tunneling microscopy (STM), leading to complementary information about the relation between geometrical and electronic structure [9][10][11][12].Usually, even the spectra of highly ordered films show features with a line-width of several hundreds of meV, mostly determined by vibronic excitations within the adsorbed molecule [7,13,14]. Therefore, even experiments with modern high-resolution photoemission spectrometers for VUV photoemission (UPS) display only features which are about two orders of magnitude larger than the most narrow peaks in other solid state or surface systems [15]. Local spectroscopic measurements by STM, on the other hand, show narrow features in the tunneling conductivity measurements through a single molecule [10,[16][17][18][19], which have been attributed to a possible Kondo like process within the charge transport through * present address: SOLEIL L'Orme des Merisiers, Saint-Aubin -BP 48, 91192 GIF-sur-YVETTE CEDEX FRANCE SOLEIL, Paris, France the adsorbed molecule. However, neither a direct evidence of a local magnetic moment, necessary for the Kondo effect, nor an immediate experimental observation of the spectral function does exist yet.Here we report about a high-resolution photoemission study o...

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“…Many-body effects on the photoemission band dispersion, as e.g. the electron-phonon driven change of the Fermi velocity near E f [12,56], are not discernible on the given energy scale and can be neglected in the present context.…”

Section: Resultsmentioning

confidence: 99%

“…The angular mode of the analyzer allows to measure a angular range of ±7°simultaneously, which makes it possible to measure the complete dispersion E B (k k ) of the occupied Au(1 1 1) Shockley-state without any sample rotation. The angular resolution of the analyzer has been determined to Dh = 0.3°, the energy resolution, consisting of broadenings from both the light source (He-I) and the analyzer, amounts to DE % 3 meV [55,56]. The base pressure was 5 · 10 À11 mbar, which increases by a factor of 20 during the measurement due to the He leakage from the discharge lamp.…”

Section: Methodsmentioning

confidence: 99%