Dielectric Relaxation of Lanthanide-Based Ternary Oxides: Physical and Mathematical Models
Joint Authors
Zhao, Chun
Tao, Jing
Werner, M.
Taylor, S.
Chalker, P. R.
Zhao, Ce Zhou
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-01-18
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Cerium-doped hafnium oxides (CexHf1−xO2) and lanthanum-doped zirconium oxides (LaxZr1−xO2) were investigated.
The highest dielectric constants, k, were obtained from lightly doped oxides with an La content of x=0.09 and a Ce content of x=0.1, for which k-values of 33~40 were obtained.
The dielectric relaxation appears to be related to the size of crystal grains formed during annealing, which was dependent on the doping level.
The physical and mathematical models were used to analyze the relationship between k-values and frequencies.
The variations in the k-values up to megahertz frequencies for both CexHf1−xO2 and LaxZr1−xO2 are simulated based on the Curie-von Schweidler (CS) or Havriliak-Negami (HN) relationships.
Concerning the lightly doped CexHf1−xO2 and LaxZr1−xO2, the data extracted are best modeled by the HN law, while LaxZr1−xO2 with doping level from x=0.22 to 0.63 are best modelled based on the CS law.
American Psychological Association (APA)
Zhao, Chun& Zhao, Ce Zhou& Tao, Jing& Werner, M.& Taylor, S.& Chalker, P. R.. 2012. Dielectric Relaxation of Lanthanide-Based Ternary Oxides: Physical and Mathematical Models. Journal of Nanomaterials،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-1029167
Modern Language Association (MLA)
Zhao, Chun…[et al.]. Dielectric Relaxation of Lanthanide-Based Ternary Oxides: Physical and Mathematical Models. Journal of Nanomaterials No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-1029167
American Medical Association (AMA)
Zhao, Chun& Zhao, Ce Zhou& Tao, Jing& Werner, M.& Taylor, S.& Chalker, P. R.. Dielectric Relaxation of Lanthanide-Based Ternary Oxides: Physical and Mathematical Models. Journal of Nanomaterials. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-1029167
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1029167