SPONTANEOUS STRAIN AS ORDER PARAMETER TO DESCRIBE THE PHASE TRANSITION IN La DOPED PbTiO FERROELECTRIC PEROVSKITE.
Spontaneous strains of lanthanum doped PbTiO compound were determined from the temperature dependence of the unit cell parameters. The critical temperature was determined by using the spontaneous strain as order parameter. The calculated value of the critical temperature agrees with that obtained th...
| Publicado en: | Revista Cubana de Física Vol. 29; no. 2; pp. 70 - 74 |
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| Autores principales: | , , , |
| Formato: | Artículo |
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Universidad de La Habana
2012
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=lth&AN=89438302&site=ehost-live header: @attributes: shortDbName: lth uiTerm: 89438302 longDbName: MedicLatina uiTag: AN controlInfo: bkinfo: jinfo: jid: 02539268 UEW jtl: Revista Cubana de Física issn: 02539268 maglogo: N pubinfo: dt: 2012 vid: 29 iid: 2 pid: 21208 pub: Universidad de La Habana artinfo: ui: 89438302 ppf: 70 ppct: 4 formats: fmt: @attributes: type: P size: 879KB tig: atl: SPONTANEOUS STRAIN AS ORDER PARAMETER TO DESCRIBE THE PHASE TRANSITION IN La DOPED PbTiO FERROELECTRIC PEROVSKITE. aug: au: MÉNDEZ-GONZÁLEZ, Y. PENTÓN-MADRIGAL, A. PELÁIZ-BARRANCO, A. CALDERÓN-PIÑAR, F. affil: Departamento de Física Aplicada, Instituto de Cibernética, Matemática y Física, ICIMAF, 15 No. 551, Vedado, La Habana 10400, Cuba Facultad de Física-Instituto de Ciencia y Tecnología de Materiales, Universidad de La Habana, San Lázaro y L, Vedado. La Habana 10400, Cuba su: Lanthanum Unit cell Critical temperature Perovskite Crystallography Elastic deformation sug: subj: Lanthanum Unit cell Critical temperature Perovskite Crystallography Elastic deformation keyword: 61.05.C- Ferroelectric materials Measurement of strain X-ray crystallography ab: Spontaneous strains of lanthanum doped PbTiO compound were determined from the temperature dependence of the unit cell parameters. The critical temperature was determined by using the spontaneous strain as order parameter. The calculated value of the critical temperature agrees with that obtained through differential scanning calorimetric measurements. The temperature dependence of the spontaneous polarization was also estimated through the components of the uniform elastic deformations parallel and perpendicular to the [001] crystallographic direction of the perovskite structure. Las deformaciones espontáneas en el compuesto PbTiO dopado con lantano han sido determinadas a partir de la dependencia de los parámetros de red con la temperatura. La temperatura crítica ha sido determinada haciendo uso de la deformación espontánea como parámetro de orden. El valor calculado para la temperatura crítica se corresponde con el obtenido a través de mediciones de calorimetría de barrido diferencial. La dependencia de la polarización espontánea con la temperatura ha sido igualmente estimada a través de las componentes de las deformaciones elásticas uniforme paralela y perpendicular a la dirección cristalográfica [001] de la estructura perovskita. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y custom: Copyright of Revista Cubana de Física is the property of Universidad de La Habana and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. item: Revista Cubana de Física holder: Universidad de La Habana dt: @attributes: year: 2012 holdings: @attributes: islocal: N |
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