We present reflectance anisotropy spectra in the energy range 1.0-5.5 eV, measured for cleaved III-V surfaces after adsorption of caesium. In such a system Cs forms one-dimensional wire-like structures at low Cs coverages (Theta << 1 ML). The formation of these Cs wires leads to characteristic changes in the reflectance anisotropy spectra of the cleaved surface such as a minimum between the E-0 and E-1 bulk critical points of the substrate. For higher coverages the development of a two-dimensional layer can be optically monitored, as can the gradual transition to a three-dimensional disordered layer close to the saturation coverage.

Fleischer, K., Bussetti, G., Goletti, C., Richter, W., & Chiaradia, P. (2004). Optical anisotropy of Cs nanostructures on III-V(110) surfaces. JOURNAL OF PHYSICS. CONDENSED MATTER, 16(39) [10.1088/0953-8984/16/39/010].

Optical anisotropy of Cs nanostructures on III-V(110) surfaces

BUSSETTI, GIANLORENZO;GOLETTI, CLAUDIO;RICHTER, WOLFGANG;CHIARADIA, PIETRO
2004

Abstract

We present reflectance anisotropy spectra in the energy range 1.0-5.5 eV, measured for cleaved III-V surfaces after adsorption of caesium. In such a system Cs forms one-dimensional wire-like structures at low Cs coverages (Theta << 1 ML). The formation of these Cs wires leads to characteristic changes in the reflectance anisotropy spectra of the cleaved surface such as a minimum between the E-0 and E-1 bulk critical points of the substrate. For higher coverages the development of a two-dimensional layer can be optically monitored, as can the gradual transition to a three-dimensional disordered layer close to the saturation coverage.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/03 - Fisica della Materia
English
Con Impact Factor ISI
Adsorption; Anisotropy; Cesium; Chemical bonds; Monolayers; Optical systems; Photomultipliers; Quenching; Reflection; Surface properties; High energy regions; Reflectance anisotropic spectra (RAS); Reflectance spectroscopy; Room temperature; Nanostructured materials
Fleischer, K., Bussetti, G., Goletti, C., Richter, W., & Chiaradia, P. (2004). Optical anisotropy of Cs nanostructures on III-V(110) surfaces. JOURNAL OF PHYSICS. CONDENSED MATTER, 16(39) [10.1088/0953-8984/16/39/010].
Fleischer, K; Bussetti, G; Goletti, C; Richter, W; Chiaradia, P
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/25002
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