High-resolution study of the surface state on Ag(100)

Goldmann, A.; Bartels, Emily C.

doi:10.1016/0167-2584(82)90195-5

Cited by 2 publications

(3 citation statements)

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“…We first deposited a C 60 multilayer onto a clean Ag substrate and obtained a monolayer by annealing it at ∼ 650 K, and then we doped the layer by potassium (K) evaporation. The cleanliness of the substrate was checked by the observation of Ag surface states [9], which disappear after C 60 deposition. The structure of the monolayer results from a compromise between the C 60 -substrate and C 60 -C 60 interactions, which are of similar strength on noble metal surfaces [8].…”

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“…1b, is in better agreement with c(6*4), although some distortion from this model structure might be present. As for the C 60 orientation on top of the Ag(100) substrate, the scanning tunneling microscopy (STM) [12] and the Xray photoelectron diffraction (XPD) [13] reveal the coexistence of two orientations, with either a single (5)(6) bond (between a pentagon and a hexagon) or a double bond (between two hexagons) facing the substrate and being aligned with the [110] or [1][2][3][4][5][6][7][8][9][10] direction (see examples on Fig. 1a).…”

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Orientation-DependentC60Electronic Structures Revealed by Photoemission Spectroscopy

et al. 2004

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We observe, with angle-resolved photoemission, a dramatic change in the electronic structure of two C60 monolayers, deposited, respectively, on Ag (111) and (100) substrates, and similarly doped with potassium to half filling of the C60 lowest unoccupied molecular orbital. The Fermi surface symmetry, the bandwidth, and the curvature of the dispersion at Gamma point are different. Orientations of the C60 molecules on the two substrates are known to be the main structural difference between the two monolayers, and we present new band-structure calculations for some of these orientations. We conclude that orientations play a key role in the electronic structure of fullerides.

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Orientation-DependentC60Electronic Structures Revealed by Photoemission Spectroscopy

et al. 2004

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“…Their existence requires that the surface perturbation of the oneelectron potential is sufficiently strong [26]. In early work, Tamm surface states were observed experimentally at the top of the bulk d-bands of Cu(100), Cu(111) [24,[26][27][28], Ag(100) [27,[29][30][31], Au(100) and Au(111) [24] by spin-integrated spectroscopy.…”

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Rashba splitting of the Tamm surface state on Re(0001) observed by spin-resolved photoemission and scanning tunneling spectroscopy

Elmers

Regel

Mashoff

et al. 2020

Phys. Rev. Research

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Using spin-resolved time-of-flight momentum microscopy, the Rashba splitting of the Tamm surface state is investigated. This state resides at the Fermi level in a projected bulk band gap of the close-packed (0001) surface of hcp Re. The Rashba splitting amounts to 0.4 Å −1. The state with smaller parallel momentum is fully separated from bulk states, whereas the Rashba branch with larger momentum hybridizes with bulk states, which leads to a suppression of spin-momentum locking. We find a good agreement of the experimental results with one step photoemission calculations that are based on ab initio theory within the local density approximation. The spin polarization of the inner Rashba state is not complete, which manifests in the occurrence of quantum interference patterns as observed by scanning tunneling microscopy. A one-to-one agreement of scanning tunneling spectroscopy and photoemission results is observed, suggesting that the quantum interference pattern originates from the inner Rashba state.

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High-resolution study of the surface state on Ag(100)

Cited by 2 publications

References 9 publications

Orientation-DependentC60Electronic Structures Revealed by Photoemission Spectroscopy

Orientation-DependentC60Electronic Structures Revealed by Photoemission Spectroscopy

Rashba splitting of the Tamm surface state on Re(0001) observed by spin-resolved photoemission and scanning tunneling spectroscopy

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