Temperature dependence of Shockley-type surface energy bands on Cu(111), Ag(111) and Au(111)

Paniago, R.; Matzdorf, R.; Meister, G.; Goldmann, A.

doi:10.1016/0039-6028(95)00509-9

Cited by 241 publications

(66 citation statements)

References 43 publications

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“…In addition, we fitted a parabolic free-electron band to the data (shown as the dashed curve along the ÿk y direction) with the band minimum at E F and an effective mass of 0:5m 0 . This value is close to the reported effective mass of the surface electrons on the Ag(111) surface [19,20]. Furthermore, there is an apparent gap on this free-electron-like band, at k y 0:29 A ÿ1 and at E 0:65 eV (marked by the white cross).…”

Section: Prl 97 206102 (2006) P H Y S I C a L R E V I E W L E T T E supporting

confidence: 86%

Scanning Tunneling Spectroscopy of Ag Films: The Effect of Periodic versus Quasiperiodic Modulation

Eom

Jiang

et al. 2006

Phys. Rev. Lett.

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By using scanning tunneling spectroscopy to probe a silver thin film that contains both periodic and quasiperiodic modulation, and by using Fourier analysis, we unravel the influences of individual Fourier components of the scattering potential (periodic versus quasiperiodic) on the electronic structure of a onedimensional quasiperiodically modulated thin Ag film. Along the periodically modulated direction, a Bragg reflection-induced energy gap is observed in k space. On the other hand, the exotic E vs k spectrum with many minigaps was observed along the quasiperiodic direction.

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Section: Prl 97 206102 (2006) P H Y S I C a L R E V I E W L E T T E supporting

confidence: 86%

Scanning Tunneling Spectroscopy of Ag Films: The Effect of Periodic versus Quasiperiodic Modulation

Eom

Jiang

et al. 2006

Phys. Rev. Lett.

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“…The Ag(111) surface supports a well characterized twodimensional Shockley surface state [29,30,31,32,33,34,35,36,17]. We chose this noble metal surface state because it serves as a well-studied, theoretically understood material with a single band, that is ideal for comparison of different FT-STS acquisition modes.…”

Section: Methodsmentioning

confidence: 99%

“…where (k) is the band dispersion,h is the reduced Planck constant, m * is the effective electron mass, which for the Ag(111) surface state is approximately equal to 0.4 times the free electron mass [17,30,31,34,37,38], and (0) = −µ = −65 meV is the chemical potential.…”

Section: Methodsmentioning

confidence: 99%

Dispersing artifacts in FT-STS: a comparison of set point effects across acquisition modes

Grothe

et al. 2016

Nanotechnology

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Abstract. Fourier transform scanning tunnelling spectroscopy (FT-STS), or quasiparticle interference (QPI), has become an influential tool for the study of a wide range of important materials in condensed matter physics. However, FT-STS in complex materials is often challenging to interpret, requiring significant theoretical input in many cases, making it crucial to understand potential artifacts of the measurement. Here, we compare the most common modes of acquiring FT-STS data and show through both experiment and simulations that artifact features can arise that depend on how the tip height is stabilized throughout the course of the measurement. The most dramatic effect occurs when a series of dI/dV maps at different energies are acquired with simultaneous constant current feedback; here a feature that disperses in energy appears that is not observed in other measurement modes. Such artifact features are similar to those arising from real physical processes in the sample and are susceptible to misinterpretation.

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“…Using the precise low T value of Reinert et al, and applying the observed Tdependency (Figure 5b of ref. [24]), the surface state for clean Ag(111) is expected at 59 meV below the Fermi level at our sample temperature of 90 K.…”

Section: B Experimental Methodsmentioning

confidence: 99%

“…According to Reinert et al [23] it has a binding energy of 63 meV at 30 K (Γ-point). Panagio et al derived a somewhat less precise value of 26 meV at 300 K and, more importantly, they examined the temperature dependence of this state in the temperature range 50 -550 K [24]. Using the precise low T value of Reinert et al, and applying the observed Tdependency (Figure 5b of ref.…”

Section: B Experimental Methodsmentioning

confidence: 99%

Adsorption geometry and interface states: Relaxed and compressed phases of NTCDA/Ag(111)

et al. 2016

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The theoretical modelling of metal-organic interfaces represents a formidable challenge, especially in consideration of the delicate balance of various interaction mechanisms and the large size of involved molecular species. In the present study, the energies of interface states, which are known to display a high sensitivity to the adsorption geometry and electronic structure of the deposited molecular species, have been used to test the suitability and reliability of current theoretical approaches. Two well-ordered overlayer structures (relaxed and compressed monolayer) of NTCDA on Ag(111) have been investigated using two-photon-photoemission to derive precise interface state energies for these closely related systems. The experimental values are reproduced by our DFT calculations using different treatments of dispersion interactions (optB88, PBE-D3) and basis set approaches (localized numerical atomic orbitals, plane waves) with remarkable accuracy. Our results underline the trustworthiness, and some of the limitations, of current DFT based methods regarding the description of geometric and electronic properties of metal-organic interfaces.

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Temperature dependence of Shockley-type surface energy bands on Cu(111), Ag(111) and Au(111)

Cited by 241 publications

References 43 publications

Scanning Tunneling Spectroscopy of Ag Films: The Effect of Periodic versus Quasiperiodic Modulation

Scanning Tunneling Spectroscopy of Ag Films: The Effect of Periodic versus Quasiperiodic Modulation

Dispersing artifacts in FT-STS: a comparison of set point effects across acquisition modes

Adsorption geometry and interface states: Relaxed and compressed phases of NTCDA/Ag(111)

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