Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/421
Title: | Dielectric relaxation and electrical properties of 0.94Pb(Fe[sub ½]Nb[sub ½])O₃-0.06PbTiO₃ single crystals | Authors: | Wang, J Tang, X Chan, HLW Choy, CL Luo, H |
Issue Date: | 7-Apr-2005 | Source: | Applied physics letters, 7 Apr. 2005, v. 86, 152907, p. 1-3 | Abstract: | Dielectric response and electrical conduction properties of 0.94Pb(Fe[sub ½]Nb[sub ½])O₃-0.06PbTiO₃ single crystals grown by the Bridgman method were studied. It was found that the single crystals did not show any sign of the presence of Curie temperature between room temperature and 300 °C. However, they exhibited very high dielectric constant at a frequency lower than 100 kHz, in the order of 10[sup 5]. Relaxation occurred at higher frequencies with a large decrease in dielectric constant, to about 1500. The thermal activation energy for relaxation was found to be ~0.17 eV, which is quite close to that for ac conductivity. It followed that the relaxation was attributed to the carriers hopping conduction, which is related to the possible jump motion of additional 3d electron between the equivalent positions of Fe ions. | Keywords: | Lead compounds Relaxor ferroelectrics Dielectric relaxation Permittivity Hopping conduction |
Publisher: | American Institute of Physics | Journal: | Applied physics letters | ISSN: | 0003-6951 | EISSN: | 1077-3118 | Rights: | © 2005 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 J. Wang et al. Appl. Phys. Lett. 86, 152907 (2005) and may be found at http://link.aip.org/link/?apl/86/152907 |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
dielectric_relaxation_05.pdf | 73.06 kB | Adobe PDF | View/Open |
Page views
115
Last Week
1
1
Last month
Citations as of Oct 13, 2024
Downloads
137
Citations as of Oct 13, 2024
SCOPUSTM
Citations
51
Last Week
0
0
Last month
0
0
Citations as of Jun 21, 2024
WEB OF SCIENCETM
Citations
49
Last Week
0
0
Last month
0
0
Citations as of Oct 17, 2024
Google ScholarTM
Check
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.