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Calculation of the Spontaneous Polarization and the Dielectric Constant as a Function of Temperature for KH2PO4
Joint Authors
Source
Advances in Condensed Matter Physics
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-09-30
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
The temperature dependence of the spontaneous polarization P is calculated in the ferroelectric phase (T Also, the dielectric constant ε is calculated at various temperatures in the paraelectric phase (T>TC) of KDP at atmospheric pressure. For this calculation of P and ε, by fitting the observed Raman frequencies of the soft mode, the microscopic parameters of the pure tunnelling model are obtained. In this model, the proton-lattice interaction is not considered and the collective proton mode is identified with the soft-mode response of the system. Our calculations show that the spontaneous polarization decreases continuously in the ferroelectric phase as approaching the transition temperature TC. Also, the dielectric constant decreases with increasing temperature and it diverges in the vicinity of the transition temperature (TC = 122 K) for KDP according to the Curie-Weiss law.
American Psychological Association (APA)
Yurtseven, Hamit& Şen, Sema. 2012. Calculation of the Spontaneous Polarization and the Dielectric Constant as a Function of Temperature for KH2PO4. Advances in Condensed Matter Physics،Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-458218
Modern Language Association (MLA)
Yurtseven, Hamit& Şen, Sema. Calculation of the Spontaneous Polarization and the Dielectric Constant as a Function of Temperature for KH2PO4. Advances in Condensed Matter Physics No. 2012 (2012), pp.1-5.
https://search.emarefa.net/detail/BIM-458218
American Medical Association (AMA)
Yurtseven, Hamit& Şen, Sema. Calculation of the Spontaneous Polarization and the Dielectric Constant as a Function of Temperature for KH2PO4. Advances in Condensed Matter Physics. 2012. Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-458218
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-458218