Positive temperature coefficient of electrical resistivity below 150 K in barium strontium titanate (Articolo in rivista)

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Label
  • Positive temperature coefficient of electrical resistivity below 150 K in barium strontium titanate (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1111/j.1551-2916.2004.00756.x (literal)
Alternative label
  • Massimo Viviani; Marcello Leoni; Maria Teresa Buscaglia; Vincenzo Buscaglia; Paolo Nanni (2004)
    Positive temperature coefficient of electrical resistivity below 150 K in barium strontium titanate
    in Journal of the American Ceramic Society (Online); Blackwell Publishing, Oxford (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Massimo Viviani; Marcello Leoni; Maria Teresa Buscaglia; Vincenzo Buscaglia; Paolo Nanni (literal)
Pagina inizio
  • 756 (literal)
Pagina fine
  • 758 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://puma.isti.cnr.it/linkres.php?resource=cnr.ieni/cnr.ieni.ge/2004-A0-019 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 87 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • In: Journal of the American Ceramic Society, vol. 87 (4) pp. 756-758. American Ceramic Society, 2004. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 3 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Institute for Energetics and Interphases, Department of Genoa, National Research Council, 16149 Genoa, Italy; Department of Process and Chemical Engineering, University of Genoa, 16129 Genoa, Italy (literal)
Titolo
  • Positive temperature coefficient of electrical resistivity below 150 K in barium strontium titanate (literal)
Abstract
  • The resistivity of Ba(1-y)(1-x)Sry(1-x)LaxTiO3 ceramics with x = 0.0025 and y = 0.25, 0.5, 0.75, and 0.9 was measured between 50 and 400 K. A resistivity anomaly corresponding to the positive temperature coefficient of electrical resistivity (PTCR) effect was observed for all compositions. The onset temperature decreased from 320 K (y = 0.25) to 70 K (y = 0.9). The extent of the PTCR effect was significantly enhanced for the strontium-rich composition and reached ~ 8 orders of magnitude for y = 0.9. These results strongly suggested the possibility to fabricate PTCR devices based on (Sr,Ba)TiO3 ceramics for application at cryogenic temperatures. (literal)
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