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Surface state on first-order ferroelectrics

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Main Authors: Junaidah, Osman, Tilley, David Reginald, Rosy, Teh, Ishibashi, Y., Mohamad Nazri, Abdul Halif, Khian, Hooi Chew
Format: Article
Language:English
Published: Springer Berlin / Heidelberg 2009
Subjects:
Ferroelectricity
Polarization (Electricity)
Landau theory
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/6614
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spelling my.unimap-66142009-07-29T08:38:16Z Surface state on first-order ferroelectrics Junaidah, Osman Tilley, David Reginald Rosy, Teh Ishibashi, Y. Mohamad Nazri, Abdul Halif Khian, Hooi Chew Ferroelectricity Polarization (Electricity) Ferroelectricity Landau theory Link to publisher's homepage at http://www.springerlink.com In the presence of a surface the Landau-Devonshire equations of ferroelectricity must be extended to include a boundary condition. For a ferroelectric with a second-order transition in the case when the polarization p(z) increases at the surface, it is well known that a surface state occurs in a range of temperature above the bulk critical temperature tCB . Here we explore the corresponding effect for a first-order ferroelectric. We show that a surface state can occur, but only if the surface effect is sufficiently strong. Analytic expressions are derived and illustrated for p(z), the surface value pS =p(0) and the free energy. The transition from the paraelectric state (p=0) to the surface state is first order, and for completeness we establish the dependence of the three critical temperatures (supercooling, thermodynamic and superheating) on a boundary-condition parameter y. In a final section, we derive and illustrate expressions for p(z)in the temperature range t<tCB. 2009-07-29T08:37:41Z 2009-07-29T08:37:41Z 2006 Article European Physical Journal B, vol. 52 (1), July 2006, pages 143-150 1434-6028 (Print) 1434-6036 (Online) http://www.springerlink.com/content/l10041r882v77054/ http://hdl.handle.net/123456789/6614 en Springer Berlin / Heidelberg
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Ferroelectricity
Polarization (Electricity)
Ferroelectricity
Landau theory
spellingShingle Ferroelectricity
Polarization (Electricity)
Ferroelectricity
Landau theory
Junaidah, Osman
Tilley, David Reginald
Rosy, Teh
Ishibashi, Y.
Mohamad Nazri, Abdul Halif
Khian, Hooi Chew
Surface state on first-order ferroelectrics
description Link to publisher's homepage at http://www.springerlink.com
format Article
author Junaidah, Osman
Tilley, David Reginald
Rosy, Teh
Ishibashi, Y.
Mohamad Nazri, Abdul Halif
Khian, Hooi Chew
author_facet Junaidah, Osman
Tilley, David Reginald
Rosy, Teh
Ishibashi, Y.
Mohamad Nazri, Abdul Halif
Khian, Hooi Chew
author_sort Junaidah, Osman
title Surface state on first-order ferroelectrics
title_short Surface state on first-order ferroelectrics
title_full Surface state on first-order ferroelectrics
title_fullStr Surface state on first-order ferroelectrics
title_full_unstemmed Surface state on first-order ferroelectrics
title_sort surface state on first-order ferroelectrics
publisher Springer Berlin / Heidelberg
publishDate 2009
url http://dspace.unimap.edu.my/xmlui/handle/123456789/6614
_version_ 1643788592201334784
score 13.222552

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