Anelastic and dielectric study of the phase transformations of PbZr1-xTixO3 around the morphotropic phase boundary (Articolo in rivista)

Type

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

Label

• Anelastic and dielectric study of the phase transformations of PbZr1-xTixO3 around the morphotropic phase boundary (Articolo in rivista) (literal)

Anno

• 2008-01-01T00:00:00+01:00 (literal)

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

• 10.1016/j.jpcs.2008.03.025 (literal)

Alternative label

• Cordero F. (a); Craciun F. (a); Galassi C. (b) (2008)
  Anelastic and dielectric study of the phase transformations of PbZr1-xTixO3 around the morphotropic phase boundary
  in Journal of physics and chemistry of solids; Elsevier, Amsterdam (Paesi Bassi)
  (literal)

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

• Cordero F. (a); Craciun F. (a); Galassi C. (b) (literal)

Pagina inizio

• 2172 (literal)

Pagina fine

• 2176 (literal)

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

• http://www.sciencedirect.com/science/article/pii/S0022369708000978 (literal)

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

• 69 (literal)

Rivista

• Journal of physics and chemistry of solids (Rivista)

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

• Study of Matter Under Extreme Conditions 2007. Elsevier. (literal)

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

• 6 (literal)

Note

• Scopu (literal)
• ISI Web of Science (WOS) (literal)

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

• a) CNR-ISC, Istituto dei Sistemi Complessi, Area della Ricerca di Roma—Tor Vergata, Via del Fosso del Cavaliere 100, I-0 0 133 Roma, Italy b) CNR-ISTEC, Istituto di Scienza e Tecnologia dei Materiali Ceramici, Via Granarolo 64, I-48018 Faenza, Italy (literal)

Titolo

• Anelastic and dielectric study of the phase transformations of PbZr1-xTixO3 around the morphotropic phase boundary (literal)

Abstract

• A revival of the interest on the morphotropic phase boundary of the PbZr1-xTixO3 started after a neutron diffraction study revealed the existence of a monoclinic phase (M) bridging the tetragonal (T) and rhombohedral (R) ones. In addition, the M phase has been found to exhibit a low temperature transformation, possibly involving rotations of the oxygen octahedra, raising a debate on its nature. Finally, the rotational instability has been predicted to extend also in the T phase. We present measurements of the complex dielectric susceptibility and elastic compliance of PbZr1-xTixO3 with 0.455less-than-or-equals, slantxless-than-or-equals, slant0.53 which bring new information on the low temperature phase transformations. The T–M transition gradually changes from first- to second-order increasing the Ti content from the boundary with the R phase to x=0.48, confirming that the coexistence of T and M phases found by neutron diffraction is intrinsic and not due to compositional fluctuations. Strikingly, the T–M transformation causes a peak in the elastic compliance, whose amplitude may even exceed that of the jump at the cubic-to-tetragonal transition, as if it were a ferroelastic transformation; it is shown that indeed there is linear coupling between shear strain and order parameter, when the T–M transition mainly consists of a rotation of the polarization. The instability involving rotation of the octahedra below 200 K is visible both in the dielectric and anelastic losses, and it extends in the tetragonal phase, as predicted by recent first-principle calculations. (literal)

Editore

• Elsevier (Editore)

Prodotto di

• Materiali Funzionali e Sistemi Disordinati (MD.P02.003.001) (Modulo)
• Processi e materiali per applicazioni elettromeccaniche (SP.P01.037.001) (Modulo)
• Institute of science and technology for ceramics (ISTEC) (Istituto)

Autore CNR

• CARMEN GALASSI (Unità di personale interno)
• FLORIANA RUSANESCU CRACIUN (Unità di personale interno)
• FRANCESCO CORDERO (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Anelastic and dielectric study of the phase transformations of PbZr1-xTixO3 around the morphotropic phase boundary" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute of science and technology for ceramics (ISTEC) (Istituto)
• Processi e materiali per applicazioni elettromeccaniche (SP.P01.037.001) (Modulo)
• Materiali Funzionali e Sistemi Disordinati (MD.P02.003.001) (Modulo)

Autore CNR di

• CARMEN GALASSI (Unità di personale interno)
• FRANCESCO CORDERO (Unità di personale interno)
• FLORIANA RUSANESCU CRACIUN (Unità di personale interno)

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

• Journal of physics and chemistry of solids (Rivista)

Editore di

• Elsevier (Editore)

Insieme di parole chiave di

• Parole chiave di "Anelastic and dielectric study of the phase transformations of PbZr1-xTixO3 around the morphotropic phase boundary" (Insieme di parole chiave)