Dielectric properties of order-disorder type crystals

Dr. V. S. Bist; N. S. Panwar

Dielectric properties of order-disorder type crystals

Dr. V. S. Bist * §

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N. S. Panwar

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§ HNB Garhwal University Srinagar (Garhwal) Uttrakhand...

Dielectric properties of order-disorder type crystals

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Abstract

The soft mode dynamical model has been used to study the dielectric properties of orderdisorder-type crystals. Using the model Hamiltonian proposed by Blinc [Advances in Phys, 29 (1972) 701] and has been modified by Bist et al [GJSFR,10,18(2010)], the expressions for the dielectric constant and tangent loss have been derived and discussed for order-disorder, KH2PO4 type-crystals with the help of double time temperature dependent Green’s function techniques and Dyson’s equation treatment. Using appropriate parameters given by Ganguli et al [Phys Rev. B21, 2937 (1980)] the transverse dielectric constant and observed dielectric constant have been calculated and compared with experimental results of Raman Intensity [Ferroelectrics 52, 91

References

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Dr. V. S. Bist, N. S. Panwar. 2012. "Dielectric properties of order-disorder type crystals". Global Journal of Science Frontier Research - F: Mathematics & Decision GJSFR-F Volume 12 (GJSFR Volume 12 Issue F7).

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GJSFR Volume 12 Issue F7

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Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

Keywords

and tangent loss Dyson’s equation Green's function phonon anharmonicity transverse and observed dielectric constant

Classification

GJSFR-F Classification MSC 2010: 82D30

Submission ReceivedApril 26, 2012
Peer Review Double Blind
Handling Editor
Accepted May 26, 2012
Published June 7, 2012

Version of record

v1.2

Issue date

July 2, 2012

Language

English

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Total Score: 151

Country: Unknown

Subject: Global Journal of Science Frontier Research

Authors: Dr. V. S. Bist , N. S. Panwar (PhD/Dr. count: 1)

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