Nanoscale imaging of permittivity in giant-kappa CaCu3Ti4O12 grains (Articolo in rivista)

Type
Label
  • Nanoscale imaging of permittivity in giant-kappa CaCu3Ti4O12 grains (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.2817539 (literal)
Alternative label
  • Fiorenza, P; Lo Nigro, R; Raineri, V; Toro, RG; Catalano, MR (2007)
    Nanoscale imaging of permittivity in giant-kappa CaCu3Ti4O12 grains
    in Journal of applied physics; AIP, American institute of physics, Melville, NY (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Fiorenza, P; Lo Nigro, R; Raineri, V; Toro, RG; Catalano, MR (literal)
Pagina inizio
  • 116103-1 (literal)
Pagina fine
  • 116103-3 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://jap.aip.org/resource/1/japiau/v102/i11/p116103_s1 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 102 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 3 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [Fiorenza, Patrick; Lo Nigro, Raffaella; Raineri, Vito] CNR, IMM, I-95121 Catania, Italy; [Toro, Roberta G.; Catalano, Maria Rita] Univ Catania, INSTM, Dipartimento Sci Chim, I-95125 Catania, Italy (literal)
Titolo
  • Nanoscale imaging of permittivity in giant-kappa CaCu3Ti4O12 grains (literal)
Abstract
  • The possibility to image the local permittivity in giant-kappa dielectrics by scanning probe microscopy was demonstrated. In particular, the microstructure and the dielectric properties of CaCu3Ti4O12 (CCTO) films grown on (001) LaAlO3 substrates were studied. CCTO amorphous layers obtained by metal-organic chemical vapor deposition have been crystallized by subsequent rapid thermal treatments at 1100 degrees C. X-ray diffraction measurements demonstrated the growth of CCTO and CaTiO3 phases. As a novelty, large square CCTO grains (a few microns) were formed with a very high permittivity. The local impedance modulus, phase, and morphology were simultaneously acquired, and the local permittivity (around 8000 at 90 kHz) of each isolated CCTO grain was calculated. (literal)
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