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|Title:||Dielectric behavior and phase transition in perovskite oxide Pb(Fe[sub ½]Nb[sub ½])[sub 1−x]Ti[sub x]O₃ single crystal|
Or, Derek Siu-wing
Chan, Helen L. W.
|Subjects:||Crystal growth from melt|
Ferroelectric Curie temperature
|Publisher:||American Institute of Physics|
|Source:||Journal of applied physics, 15 June 2009, v. 105, no. 12, 124109, p. 1-4.|
|Abstract:||Perovskite oxide Pb(Fe[sub ½]Nb[sub ½])₀.₅₂Ti₀.₄₈O₃ crystals, which were grown using a modified Bridgman method, show a high low-frequency dielectric constant response at room temperature. The Curie phase transition occurs at 523 K. The characteristic frequency of the dielectric dispersion versus the inverse of temperature obeys an Arrhenius relation, which shows a thermally activated behavior. The thermal activation energy for relaxation was found to be ~0.14 eV. The high dielectric permittivity was attributed to oxygen vacancies and conduction via hopping carriers.|
|Rights:||© 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Y. Jia et al., J. Appl. Phys. 105, 124109 (2009) and may be found at http://jap.aip.org/resource/1/japiau/v105/i12/p124109_s1.|
|Appears in Collections:||AP Journal/Magazine Articles|
EE Journal/Magazine Articles
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