L: 1x1
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Angle-resolved valence band photoelectron spectra are collected from 1 X 1 ordered overlayers on I-2-saturated GaAs(001)-4 x 1, -c(2 X 8), and InAs(001)-c(8 x 2). A high-intensity dispersive surface state, located approximately 4.4 eV below the valence band maximum, is observed in each case. The state passes through an open lens in the projected bulk density of states and disperses symmetrically around the surface Brillouin zone edge. For all surfaces studied, the state is stronger when excited with the electric field polarized in the [110], as compared to the ], azimuth. Since the state is independent of the termination of the initial surface, and since iodine bonds primarily to the outermost element, the state must result from delocalization of the electron states in the overlayer, and is not related to bonding with the substrate.
Connect to a simulated Keysight RF signal generator using ividev with the instrument's MATLAB driver name and resource name. This example uses the AgRfSigGen driver's simulation mode to run without physically connecting any hardware. Since simulation mode is enabled, the resource name can be specified as empty.
32. A. Berkó, T. Bíró, F. Solymosi: Formationandmigration of carbon produced in the dissociation of CO on Rh /TiO2(110)-(1x2)model catalyst: a scanning microscopy study.Journal of Physical Chemistry B 104 (2000) 2506. [fulltext pdf]
20. A.Berkó,J. Raskó and F. Solymosi: Spectroscopic studies on the reactionpathways of methanol dissociation on Pd catalysts, New Frontiers inCatalysis,Part C, p. 359. Editors: L. Guczi, F. Solymosi and P. Tetenyi:1993Elsevier SciencePublishers B. V. 781b155fdc