Relaxation dynamics near ferroelectric phase transitions and the central-peak phenomenon

Please use this identifier to cite or link to this item: http://dspace.mediu.edu.my:8181/xmlui/handle/123456789/3104

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DC Field	Value	Language
dc.creator	Kokshenev V.B.	-
dc.date	2000	-
dc.date.accessioned	2013-05-30T00:30:08Z	-
dc.date.available	2013-05-30T00:30:08Z	-
dc.date.issued	2013-05-30	-
dc.identifier	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332000000400020	-
dc.identifier	http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2000&volume=30&issue=4&spage=745	-
dc.identifier.uri	http://koha.mediu.edu.my:8181/jspui/handle/123456789/3104	-
dc.description	The instability of the paraelectric phase in ferroelectrics, driven by thermal fluctuations, is discussed on the basis of the quantum three-dimensional spin-1/2 transverse-field Ising model (TIM) within the framework of the Green function method. The two-step critical dynamics of the TIM is analyzed through the ferroelectric order-parameter fluctuation spectra observed above the critical temperature Tc. The spectra profiles are given near Tc in explicit form. The slow-down exponents deltac = <img src="http:/img/fbpe/bjp/v30n4/19eq01.gif" align="absmiddle"> and deltas = <img src="http:/img/fbpe/bjp/v30n4/19eq02.gif" align="absmiddle"> are deduced for the slow and fast parts of structural relaxation and are compared with those known from the literature.	-
dc.publisher	Sociedade Brasileira de Física	-
dc.source	Brazilian Journal of Physics	-
dc.title	Relaxation dynamics near ferroelectric phase transitions and the central-peak phenomenon	-
Appears in Collections:	Physics and Astronomy

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