Surface state effects on the electroreflectance spectroscopy of Au single crystal surfaces

Reflection Anisotropy Spectroscopy: A New Probe for the Solid-Liquid Interface

“…Recently, experimental [16] and theoretical [11] work has shown that the initial surface state assigned to this transition by Liu et al [17] is not occupied on the reconstructed surface and we seek an alternative explanation in the work of Xu et al [11]. An excellent candidate is a transition at the G point between the occupied surface resonance of odd symmetry F, arising from d states of yz character, to the unoccupied surface state A, ϳ0.3 eV above the Fermi energy, E F , which is of even symmetry and predominately p character.…”

“…1 we take note of recent theoretical and experimental studies of the electronic structures of the Au͑110͒-͑2 3 1͒ surface [11,16]. Electroreflectance experiments on the Au(110) surface by Liu et al [17] found two transitions at 3.2 and 3.6 eV, and these authors predicted a lower energy transition (1.8 eV). It is likely that we are observing the same transitions.…”

“…Liu et al [17] identified a low energy transition in the electroreflectance spectrum with a transition between surface states at theȲ point. Recently, experimental [16] and theoretical [11] work has shown that the initial surface state assigned to this transition by Liu et al [17] is not occupied on the reconstructed surface and we seek an alternative explanation in the work of Xu et al [11].…”

Electrochemical reductive desorption of alkyl self-assembled monolayers studied in situ by spectroscopic ellipsometry: evidence for formation of a low refractive index region after desorption

“…47,48 The electrochemical processes at the interface may lead to transitions between occupied and empty surface states, which also show as absorption features in the data of J 1 and should show distinct spectral features. [61][62][63][64][65] Electroreflectance also shows special features in the spectra around certain characteristic wavelengths of the substrate dielectric function. 59,66 Indeed spectral features are observed in the ''spectra'' of d H 2 0 and d H 2 *, typically at wavelengths below 550 nm (ESI †).…”

Density-functional studies of spin-orbit splitting in graphene on metals

“…For the rest two cases: Gr/Ni (I) and Gr/Ag (II), only one monolayer of metal substrate is enough to give a saturated SO splitting of graphene. Since Au SSs usually extend several atomic layers into the bulk 23 , a few layers of metals are needed to obtain the saturated SO splitting. Nevertheless, the SO splitting for graphene on Au mono-and bi-layer films is already large, explaining why one Au atomic layer intercalated between graphene and Ni (111) can cause a substantial Rashba effect in the experiment.…”