Nitrogen-hydrogen complex in GaAsxN1-x revealed by x-ray absorption spectroscopy (Articolo in rivista)

Type

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

Label

• Nitrogen-hydrogen complex in GaAsxN1-x revealed by x-ray absorption spectroscopy (Articolo in rivista) (literal)

Anno

• 2005-01-01T00:00:00+01:00 (literal)

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

• 10.1016/j.susc.2004.12.019 (literal)

Alternative label

• Ciatto G., Boscherini F., Amore Bonapasta A., Filippone F., Polimeni A., Capizzi M. (2005)
  Nitrogen-hydrogen complex in GaAsxN1-x revealed by x-ray absorption spectroscopy
  in Physical review. B, Condensed matter and materials physics (Online)
  (literal)

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

• Ciatto G., Boscherini F., Amore Bonapasta A., Filippone F., Polimeni A., Capizzi M. (literal)

Pagina inizio

• 201301 (literal)

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

• 71 (literal)

Rivista

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

Note

• ISI Web of Science (WOS) (literal)

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

• European Synchrotron Radiation Facility Department of Physics and INFM, University of Bologna Department of Physics and INFM, Università di Roma \"La Sapienza\" ISM - CNR (literal)

Titolo

• Nitrogen-hydrogen complex in GaAsxN1-x revealed by x-ray absorption spectroscopy (literal)

Abstract

• GaAsN alloys belong to a class of semiconductors with fascinating physical properties. Indeed, a small amount of nitrogen incorporation in GaAs leads to a counterintuitive and large band-gap reduction, and to an unexpected sudden increase in the effective mass of electrons. Even more surprisingly, both electronic and structural changes can be reversed fully and in a tunable manner by hydrogen incorporation. In this paper, we combine x-ray absorption spectroscopy at the nitrogen edge with ab initio simulations to investigate the atomic geometry of N-H complexes in hydrogenated GaAsN. In this way, we provide experimental evidence that dihydrogen-nitrogen complexes with C2v symmetry are the most abundant species in hydrogenated GaAsN. This finding contradicts previous predictions of \"in-line\" N-H2* complexes as the predominant species, and accounts for recent infrared absorption experiments. (literal)

Prodotto di

• Proprietà magnetiche, elettroniche e funzionali di aggregati di dimensione atomica (MD.P04.004.001) (Modulo)
• Institute of structure of matter (ISM) (Istituto)

Autore CNR

• ALDO AMORE BONAPASTA (Persona)
• FRANCESCO FILIPPONE (Unità di personale interno)

Incoming links:

Autore CNR di

• ALDO AMORE BONAPASTA (Persona)
• FRANCESCO FILIPPONE (Unità di personale interno)

Prodotto

• Institute of structure of matter (ISM) (Istituto)
• Proprietà magnetiche, elettroniche e funzionali di aggregati di dimensione atomica (MD.P04.004.001) (Modulo)

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

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