Temperature dependence of the size distribution function of InAs quantum dots on GaAs(001) (Articolo in rivista)

Type

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

Label

• Temperature dependence of the size distribution function of InAs quantum dots on GaAs(001) (Articolo in rivista) (literal)

Anno

• 2010-01-01T00:00:00+01:00 (literal)

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

• 10.1103/PhysRevB.81.165306 (literal)

Alternative label

• Arciprete F., Fanfoni M., Patella F., Della Pia A., Balzarotti A.,Placidi E. (2010)
  Temperature dependence of the size distribution function of InAs quantum dots on GaAs(001)
  in Physical review. B, Condensed matter and materials physics (Online)
  (literal)

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

• Arciprete F., Fanfoni M., Patella F., Della Pia A., Balzarotti A.,Placidi E. (literal)

Pagina inizio

• 165306-1 (literal)

Pagina fine

• 165306-5 (literal)

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

• http://prb.aps.org/abstract/PRB/v81/i16/e165306 (literal)

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

• 81 (literal)

Rivista

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

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

• 5 (literal)

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

• 16 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy CNR CNISM, I-00133 Rome, Italy (literal)

Titolo

• Temperature dependence of the size distribution function of InAs quantum dots on GaAs(001) (literal)

Abstract

• We present a detailed atomic-force-microscopy study of the effect of annealing on InAs/GaAs(001) quantum dots grown by molecular-beam epitaxy. Samples were grown at a low growth rate at 500°C with an InAs coverage slightly greater than critical thickness and subsequently annealed at several temperatures. We find that immediately quenched samples exhibit a bimodal size distribution with a high density of small dots (<50 nm3) while annealing at temperatures greater than 420?°C leads to a unimodal size distribution. This result indicates a coarsening process governing the evolution of the island size distribution function which is limited by the attachment-detachment of the adatoms at the island boundary. At higher temperatures one cannot ascribe a single rate-determining step for coarsening because of the increased role of adatom diffusion. However, for long annealing times at 500°C the island size distribution is strongly affected by In desorption. (literal)

Prodotto di

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

Autore CNR

• ERNESTO PLACIDI (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Temperature dependence of the size distribution function of InAs quantum dots on GaAs(001)" (Insieme di parole chiave)

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

• ERNESTO PLACIDI (Unità di personale interno)

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

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

Insieme di parole chiave di

• Parole chiave di "Temperature dependence of the size distribution function of InAs quantum dots on GaAs(001)" (Insieme di parole chiave)