\"Negative thermal expansion in crystals with the zincblende structure: an EXAFS study of CdTe\" (Articolo in rivista)

Type
Label
  • \"Negative thermal expansion in crystals with the zincblende structure: an EXAFS study of CdTe\" (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0953-8984/24/11/115403 (literal)
Alternative label
  • N. Abd el All, G. Dalba, D. Diop, P. Fornasini, R. Grisenti, O. Mathon, F. Rocca, B. Thiodjio Sendja, M. Vaccari (2012)
    "Negative thermal expansion in crystals with the zincblende structure: an EXAFS study of CdTe"
    in Journal of physics. Condensed matter (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • N. Abd el All, G. Dalba, D. Diop, P. Fornasini, R. Grisenti, O. Mathon, F. Rocca, B. Thiodjio Sendja, M. Vaccari (literal)
Pagina inizio
  • 115403-1 (literal)
Pagina fine
  • 115403-8 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://iopscience.iop.org/0953-8984/24/11/115403/ (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 24 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Trent, Dipartimento Fis, I-38050 Trento, Italy; Univ Cheick Anta Diop, Dept Phys, Dakar, Senegal; ESRF, Grenoble, France; IFN CNR, Ist Foton & Nanotecnol, Unita FBK Foton Trento, I-38050 Trento, Italy 5. Assiut Univ, Dept Phys, Assiut, Egypt; Univ Yaounde 1, Dept Phys, Yaounde, Cameroon (literal)
Titolo
  • \"Negative thermal expansion in crystals with the zincblende structure: an EXAFS study of CdTe\" (literal)
Abstract
  • The extended x-ray absorption fine structure (EXAFS) has been measured at both the K edges of cadmium and tellurium in CdTe, from liquid helium to room temperature, in order to investigate the local thermodynamic behaviour. The temperature dependences of the structural parameters obtained from the separate analysis of the two edges are perfectly consistent. The positive contribution to the thermal expansion due to the bond stretching and the negative contribution due to the tension effects are disentangled and quantified in terms of the bond thermal expansion and the perpendicular mean square relative displacement. The comparison with previous EXAFS results for Ge and CuCl shows that relevant correlations can be established between a number of local parameters measured by means of EXAFS and the properties of the lattice negative thermal expansion of tetrahedrally bonded semiconductors. The effective force constants derived from the EXAFS are compared with the force constants of a valence force field model. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Insieme di parole chiave di
data.CNR.it