Journal
JOURNAL OF APPLIED PHYSICS
Volume 98, Issue 9, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2125117
Keywords
-
Categories
Ask authors/readers for more resources
We have studied the frequency and temperature dependences of permittivity and impedance of the compounds ACu(3)Ti(4)O(12) (A = Ca, Bi-2/3, Y-2/3, La-2/3) in the ranges of 10(-1)-10(6) Hz and -150-200 degrees C. All compounds investigated display similar dielectric properties. Specifically, they all have a Debye-like relaxation and their dielectric constants are independent of frequency and temperature over a wide range. They all have two electrical responses in impedance formalism, indicating that there are two distinct contributions. We attribute them to grains and grain boundaries in the ceramic samples and explain the dielectric behaviors by Maxwell-Wagner relaxation arising at the interfaces between grains and their boundaries. (c) 2005 American Institute of Physics.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available