Enhancement of dielectric constant and associated coupling of polarization behavior in thin film relaxor superlattices
Data(s) |
06/08/2001
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Resumo |
Thin film capacitor structures in which the dielectric is composed of superlattices of the relaxors [0.2Pb(Zn1/3Nb2/3)O- 3-0.8BaTiO(3)] and Pb(Mg1/3Nb2/3)O-3 have been fabricated by pulsed laser deposition. Superlattice wavelength (Lambda) was varied between similar to3 and similar to 600 nm, and dielectric properties were investigated as a function of Lambda. Progressive enhancement of the dielectric constant was observed on decreasing Lambda, and, in contrast to previous work, this was not associated with the onset of Maxwell-Wagner behavior. Polarization measurements as a function of temperature suggested that the observed enhancement in dielectric constant was associated with the onset of a coupled response. The superlattice wavelength (Lambda =20 nm) at which coupled functional behavior became apparent is comparable to that found in literature for the onset of coupled structural behavior (between Lambda =5 nm and Lambda =10 nm). (C) 2001 American Institute of Physics. |
Identificador |
http://dx.doi.org/10.1063/1.1391233 http://www.scopus.com/inward/record.url?scp=0039189871&partnerID=8YFLogxK |
Idioma(s) |
eng |
Direitos |
info:eu-repo/semantics/restrictedAccess |
Fonte |
Corbett , M H , Bowman , R , Gregg , M & Foord , D T 2001 , ' Enhancement of dielectric constant and associated coupling of polarization behavior in thin film relaxor superlattices ' Applied Physics Letters , vol 79(6) , no. 6 , pp. 815-817 . DOI: 10.1063/1.1391233 |
Palavras-Chave | #/dk/atira/pure/subjectarea/asjc/3100/3101 #Physics and Astronomy (miscellaneous) |
Tipo |
article |