Nanoscale electrical probing of heterogeneous ceramics: the case of giant permittivity calcium copper titanate (CaCu3Ti4O12) (Articolo in rivista)

Type

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

Label

• Nanoscale electrical probing of heterogeneous ceramics: the case of giant permittivity calcium copper titanate (CaCu3Ti4O12) (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

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

• 10.1039/c0nr00828a (literal)

Alternative label

• Patrick Fiorenza, Vito Raineri, Matthew C. Ferrarelli, Derek C. Sinclair, Raffaella Lo Nigro (2011)
  Nanoscale electrical probing of heterogeneous ceramics: the case of giant permittivity calcium copper titanate (CaCu3Ti4O12)
  in Nanoscale (Print)
  (literal)

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

• Patrick Fiorenza, Vito Raineri, Matthew C. Ferrarelli, Derek C. Sinclair, Raffaella Lo Nigro (literal)

Pagina inizio

• 1171 (literal)

Pagina fine

• 1175 (literal)

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

• 3 (literal)

Rivista

• Nanoscale (Rivista)

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

• 5 (literal)

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

• 3 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• Istituto per la Microelettronica e Microsistemi (IMM), Consiglio Nazionale delle Ricerche (CNR) Department of Materials Science and Engineering, University of Sheffield (literal)

Titolo

• Nanoscale electrical probing of heterogeneous ceramics: the case of giant permittivity calcium copper titanate (CaCu3Ti4O12) (literal)

Abstract

• Scanning Probe Microscopy with conductive tips has been used to image and study the dielectric properties of giant permittivity CaCu3Ti4O12 ceramics at the nanoscale. Since measurements are generally carried out on sections of a sample, particular attention has been devoted to possible artefacts due to surface imperfections, such as substantial surface roughness and/or contamination that can result in controversial interpretation, particularly at nanometric spatial dimensions. A reliable surface investigation has been carried out after the definition of both the physical and geometrical unbiased criteria to avoid any artefacts due to surface roughness and/or anomalous tip-sample contact variations. The presence of insulating grain boundaries and the measurement of a depletion layer at the grain-grain boundary interfaces unambiguously demonstrate the relevance of the Internal Barrier Layer Capacitor effect, among all the proposed physical mechanisms, to explain the giant dielectric behaviour. Such imaging provided a clear correlation between the macroscopic dielectric properties and the nanometric structure at the interfaces. Moreover, the \"general criteria'' for reliable nanoelectrical characterization as well as the related measurement resolution have been defined. (literal)

Prodotto di

• Materiali multifunzionali, e innovativi per componenti integrati (MD.P05.003.002) (Modulo)
• Institute for microelectronics and microsystems (IMM) (Istituto)

Autore CNR

• PATRICK FIORENZA (Persona)
• RAFFAELLA LO NIGRO (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Nanoscale electrical probing of heterogeneous ceramics: the case of giant permittivity calcium copper titanate (CaCu3Ti4O12)" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute for microelectronics and microsystems (IMM) (Istituto)
• Materiali multifunzionali, e innovativi per componenti integrati (MD.P05.003.002) (Modulo)

Autore CNR di

• RAFFAELLA LO NIGRO (Unità di personale interno)
• PATRICK FIORENZA (Persona)

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

• Nanoscale (Rivista)

Insieme di parole chiave di

• Parole chiave di "Nanoscale electrical probing of heterogeneous ceramics: the case of giant permittivity calcium copper titanate (CaCu3Ti4O12)" (Insieme di parole chiave)