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pro vyhledávání: '"Cristina Fedor"'
Publikováno v:
Journal of Applied Physics. 94:1918-1925
The low-field dielectric response of the relaxor-ferroelectric (1−x)PbFe2/3W1/3O3–xPbTiO3 ceramics with various x, was investigated. The permittivity data were analyzed with empirical laws that describe the diffuse phase transitions in relaxors.
Publikováno v:
Japanese journal of applied physics 41 (2002): 7189–7194. doi:10.1143/JJAP.41.7189
info:cnr-pdr/source/autori:Mitoseriu L., Viviani M., Ricinschi D., Fedor C., Nanni P./titolo:Simulation of positive temperature coefficient of resistivity (PTCR) behaviour in n-doped BaTiO3 ceramics/doi:10.1143%2FJJAP.41.7189/rivista:Japanese journal of applied physics/anno:2002/pagina_da:7189/pagina_a:7194/intervallo_pagine:7189–7194/volume:41
info:cnr-pdr/source/autori:Mitoseriu L., Viviani M., Ricinschi D., Fedor C., Nanni P./titolo:Simulation of positive temperature coefficient of resistivity (PTCR) behaviour in n-doped BaTiO3 ceramics/doi:10.1143%2FJJAP.41.7189/rivista:Japanese journal of applied physics/anno:2002/pagina_da:7189/pagina_a:7194/intervallo_pagine:7189–7194/volume:41
A theoretical approach taking into consideration the semiconductor-ferroelectric properties of n-doped BaTiO3 ceramics was used for describing the resistivity-temperature dependence over a large range of temperatures. A limited range of the donor com