EFFECTS OF THE LANTHANUM CONCENTRATION ON THE (PbLa)(ZrTi)O ANTIFERROELECTRIC CERAMIC SYSTEM.
Lanthanum modified lead zirconate titanate antiferroelectric ceramics has been studied by using X-ray diffraction, dielectric analysis and ferroelectric hysteresis loops. Both antiferroelectric-orthorhombic (Pbam) and ferroelectric-rhombohedral (R3c) phases co-exist in the studied compositions. The...
| Publicado en: | Revista Cubana de Física Vol. 33; no. 1; pp. 12 - 18 |
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| Autores principales: | , , , , , , |
| Formato: | Artículo |
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Universidad de La Habana
July2016
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| 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=123688740&site=ehost-live header: @attributes: shortDbName: lth uiTerm: 123688740 longDbName: MedicLatina uiTag: AN controlInfo: bkinfo: jinfo: jid: 02539268 UEW jtl: Revista Cubana de Física issn: 02539268 maglogo: N pubinfo: dt: July2016 vid: 33 iid: 1 pid: 21208 pub: Universidad de La Habana artinfo: ui: 123688740 ppf: 12 ppct: 6 formats: fmt: @attributes: type: P size: 929KB tig: atl: EFFECTS OF THE LANTHANUM CONCENTRATION ON THE (PbLa)(ZrTi)O ANTIFERROELECTRIC CERAMIC SYSTEM. aug: au: MENDEZ-GONZÁLEZ, Y. PELAIZ-BARRANCÓ, A. PENTÓN MADRIGAL, A. CUERRA, J. D. S. GUO JLE WANG XIUCAI TONGQING YANG affil: Facultad de Física-Instituto de Ciencia y Tecnología de Materiales, Universidad de La Habana. San Lázaro y L, Vedado. La Habana 10400, Cuba Grupo de Ferroelétricos e Materiais Multifuncionais, Instituto de Física, Universidade Federal de Uberlandia. 38400-902, Uberlândia - MG, Brazil Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China Functional Materials Research Laboratory, College for Materials Science and Engineering, Tongji University, 4800 Caoan, Shanghai 201804, China su: Lanthanum Antiferroelectric materials Antiferroelectricity Ceramics Zirconates Titanates sug: subj: Lanthanum Antiferroelectric materials Antiferroelectricity Ceramics Zirconates Titanates ab: Lanthanum modified lead zirconate titanate antiferroelectric ceramics has been studied by using X-ray diffraction, dielectric analysis and ferroelectric hysteresis loops. Both antiferroelectric-orthorhombic (Pbam) and ferroelectric-rhombohedral (R3c) phases co-exist in the studied compositions. The dielectric response has revealed the presence of two peaks in a wide temperature range, which have been associated to different phase transitions. Slim-like hysteresis loops were obtained at room temperature, suggesting a higher stability of the antiferroelectric phase. The hysteresis and dielectric results show that the increase of the La ions concentrations disrupts the long-range dipolar order for the ferroelectric phase. En este trabajo han sido estudiadas cerámicas antiferroeléctricas de circonato-titanato de plomo modificadas con lantano utilizando difracción de rayos-X, mediciones dieléctricas e histéresis ferroeléctrica. Los patrones de difracción de rayos-X muestran, para todas las composiciones, la coexistencia de fases ferroeléctrica con simetría romboédrica (R3c) y antiferroeléctrica con simetría ortorrombica (Pbam). Los resultados de la respuesta dieléctrica mostraron dos picos en su comportamiento, asociados a diferentes transiciones de fase. La dependencia P-E, a temperatura ambiente, sugiere una mayor estabilidad de la fase antiferroeléctrica. Los resultados de las propiedades dieléctricas y la histeresis ferroeléctrica muestran que el incremento de la concentración de los iones La debilita las interacciones de largo alcance que establecen el orden ferroeléctrico. 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: 2016 holdings: @attributes: islocal: N |
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