TITLE

Dielectric relaxation in the Pb(Yb[sub 1/2]Nb[sub 1/2])O[sub 3]–PbTiO[sub 3] solid solution single crystal near the morphotropic phase boundary

AUTHOR(S)
Yasuda, Naohiko; Inaba, Hiroaki; Ohwa, Hidehiro; Iwata, Makoto; Terauchi, Hikaru; Ishibashi, Yoshihiro
PUB. DATE
August 2003
SOURCE
Applied Physics Letters;8/18/2003, Vol. 83 Issue 7, p1409
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The dielectric properties in 0.47Pb(Yb[sub 1/2]Nb[sub 1/2])O[sub 3]–0.53PbTiO[sub 3] (0.47PYN–0.53PT) single crystals near the morphotropic phase boundary (MPB) were investigated in the frequency range from 10 kHz to 1 MHz. Remarkable dielectric relaxation was observed along the polar <001> direction in the tetragonal 0.47PYN–0.53PT single crystal near the MPB. An increase of the dielectric relaxation time was observed as the Curie temperature was approached. The real part and the imaginary part of the complex relative permittivity obeys the Cole–Cole arc law, and the Debye type dielectric dispersion with the polydispersive type among the order-disorder type ferroelectrics was observed. © 2003 American Institute of Physics.
ACCESSION #
10543222

 

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