Geometric, electronic, and optical properties of the Si(111)2×1 surface: Positive and negative buckling (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Geometric, electronic, and optical properties of the Si(111)2×1 surface: Positive and negative buckling (Articolo in rivista) (literal)

Anno

• 2012-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1103/PhysRevB.86.245313 (literal)

Alternative label

• C. Violante, A. Mosca Conte, F. Bechstedt, O. Pulci (2012)
  Geometric, electronic, and optical properties of the Si(111)2×1 surface: Positive and negative buckling
  in Physical review. B, Condensed matter and materials physics (CD-ROM); American Physical Society (APS), College Pk (Stati Uniti d'America)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• C. Violante, A. Mosca Conte, F. Bechstedt, O. Pulci (literal)

Pagina inizio

• 245313 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 86 (literal)

Rivista

• Physical review. B, Condensed matter and materials physics (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 9 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 24 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• ETSF, MIFP, Dipartimento di Fisica, Università di Roma Tor Vergata, Via della Ricerca Scientifica 1, I-00133 Rome, Italy ETSF, IFTO, Friedrich-Schiller-Universität, Max-Wien-Platz 1, 07743 Jena, Germany Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere 100, I-00133 Rome, Italy (literal)

Titolo

• Geometric, electronic, and optical properties of the Si(111)2×1 surface: Positive and negative buckling (literal)

Abstract

• The Si(111)2×1 is among the most investigated surfaces. Nonetheless, several issues are still not understood. Its reconstruction is well explained in terms of the Pandey model with a slight buckling (tilting) of the topmost atoms; two different isomers of the surface, conventionally named positive and negative buckling, exist. Usually, scanning tunneling microscopy (STM) experiments identify the positive buckling isomer as the stable reconstruction at room temperature. However, at low temperatures and for high n doping of the substrate, recent scanning tunneling spectroscopy (STS) measurements found the coexistence of positive and negative buckling on the Si(111)2×1 surface. In this work, state-of-the-art ab initio methods, based on density functional theory and on many-body perturbation theory, have been used to obtain structural, electronic, and optical properties of Si(111)2×1 positive and negative buckling. The theoretical reflectance anisotropy spectra (RAS), with the inclusion of the excitonic effects, can provide a way to deepen the understanding of the coexistence of the isomers. (literal)

Editore

• American Physical Society (APS) (Editore)

Prodotto di

• Institute of structure of matter (ISM) (Istituto)
• Microscopia a Scansione a Sonda Locale su sistemi nanostrutturati e materiali biologici (MD.P06.006.001) (Modulo)

Autore CNR

• OLIVIA PULCI (Unità di personale esterno)

Incoming links:

Prodotto

• Institute of structure of matter (ISM) (Istituto)
• Microscopia a Scansione a Sonda Locale su sistemi nanostrutturati e materiali biologici (MD.P06.006.001) (Modulo)

Autore CNR di

• OLIVIA PULCI (Unità di personale esterno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Physical review. B, Condensed matter and materials physics (Rivista)

Editore di

• American Physical Society (APS) (Editore)