Novel Method For Determining The Curie-Temperature Of Ferroelectric-Films

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dc.contributorVirginia Techen
dc.contributor.authorKwok, C. K.en
dc.contributor.authorDesu, Seshu B.en
dc.contributor.departmentMaterials Science and Engineering (MSE)en
dc.date.accessed2014-03-20en
dc.date.accessioned2014-04-09T18:12:24Zen
dc.date.available2014-04-09T18:12:24Zen
dc.date.issued1993-09-01en
dc.description.abstractA novel technique to measure the Curie temperature of ferroelectric thin films has been developed. The method is based on identifying changes in slope of film stress versus temperature plot. At the Curie temperature, ferroelectric films undergo a phase transition from ferroelectric phase to paraelectric phase. Due to this phase transformation, physical properties of films such as elastic constants and coefficients of thermal expansion also change at the Curie temperature. Consequently, at this temperature the temperature coefficient of film stress changes since it is related to elastic constants and thermal expansion coefficient. Thus, by measuring the film stress as a function of temperature, the Curie temperature can be determined. The Curie temperatures measured by this method are in good agreement with the literature values. Small discrepancies that were observed can be attributed to the intrinsic stresses present in the films.en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationKwok, C. K.; Desu, S. B., "novel method for determining the Curie-temperature of ferroelectric-films," Rev. Sci. Instrum. 64, 2604 (1993); http://dx.doi.org/10.1063/1.1143876en
dc.identifier.doihttps://doi.org/10.1063/1.1143876en
dc.identifier.issn0034-6748en
dc.identifier.urihttp://hdl.handle.net/10919/47067en
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/rsi/64/9/10.1063/1.1143876en
dc.language.isoen_USen
dc.publisherAIP Publishingen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectCurie pointen
dc.subjectFerroelectric thin filmsen
dc.subjectFerroelectric phase transitionsen
dc.subjectElasticityen
dc.subjectPhase transitionsen
dc.subjectTemperature measurementen
dc.subjectThermal expansionen
dc.subjectThermal propertiesen
dc.subjectThermodynamic propertiesen
dc.titleNovel Method For Determining The Curie-Temperature Of Ferroelectric-Filmsen
dc.title.serialReview of Scientific Instrumentsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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