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EFFECTS OF COHERENCE AND DOMAIN WALLS ON DIFFRACTION PROFILES IN RARE-EARTH DOPED PbTiO3.

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Title: EFFECTS OF COHERENCE AND DOMAIN WALLS ON DIFFRACTION PROFILES IN RARE-EARTH DOPED PbTiO3.
Alternate Title: EFECTOS DE LA COHERENCIA Y LAS PAREDES DE DOMINIO EN LOS PERFILES DE DIFRACCIÓN EN PbTiO3 DOPADO CON TIERRAS RARAS.
Authors: CAMEJO-GONZÁLEZ, D.1, PENTÓN-MADRIGAL, A.1,2 arbelio@fisica.uh.cut, PELÁIZ-BARRANCOOC, A.3
Source: Revista Cubana de Física. 12/15/2025, Vol. 42 Issue 2, p96-102. 7p.
Subjects: X-ray diffraction, FERROELECTRIC crystals, LEAD titanate, ANTIPHASE boundaries, DIFFRACTION patterns, DOPING agents (Chemistry), MICROSTRUCTURE, COHERENCE (Nuclear physics)
Abstract (English): The paper presents a study concerning the coherence and domain wall effects on the profile of selected X-ray diffraction (XRD) peaks from the ferroelectric system Pb0.92 Ln0.08 TiO3 (Ln3+ = La3+, Dy3+). The analysis focuses on the hkl-dependent broadening and asymmetry of certain diffraction peaks. The study was conducted using a diffraction model evaluated with experimentally determined parameters from XRD and Transmission Electron Microscopy (TEM). The results show that both coherence effects and domain wall scattering contribute significantly to peak asymmetries and diffuse intensity between (h00)/(00h) doublets. The results also show that these effects are sensitive to domain size being more pronounced in lower-order reflections. The choice of dopant directly impacts microstructural parameters. The study highlights the complexity of quantifying ferroelectric microstructures alone from diffraction data. [ABSTRACT FROM AUTHOR]
Abstract (Spanish): El artículo presenta un estudio sobre los efectos de coherencia y de pared de dominio en el perfil de determinados máximos de difracción de rayos X (DRX) del sistema ferroeléctrico Pb0.92Ln0.08 TiO3 (Ln3+ = La3+, Dy3+). El análisis se centra en el ensanchamiento y la asimetría dependientes de hkl de ciertos picos de difracción. El estudio se realizó utilizando un modelo de difracción evaluado con parámetros determinados experimentalmente mediante DRX y microscopía electrónica de transmisión. Los resultados muestran que tanto los efectos de coherencia como la dispersión de pared de dominio contribuyen significativamente a las asimetrías de los picos y a la intensidad difusa entre los dobletes (h00)/(00h). Los resultados también muestran que estos efectos son sensibles al tamaño del dominio y es más pronunciado en reflexiones de orden inferior. La elección del dopante afecta directamente a los parámetros microestructurales. El estudio destaca la complejidad de cuantificar las microestructuras ferroeléctricas únicamente a partir de datos de difracción. [ABSTRACT FROM AUTHOR]
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. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: MedicLatina
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PubType: Academic Journal
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  Data: EFFECTS OF COHERENCE AND DOMAIN WALLS ON DIFFRACTION PROFILES IN RARE-EARTH DOPED PbTiO<subscript>3</subscript>.
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  Data: EFECTOS DE LA COHERENCIA Y LAS PAREDES DE DOMINIO EN LOS PERFILES DE DIFRACCIÓN EN PbTiO3 DOPADO CON TIERRAS RARAS.
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  Data: <searchLink fieldCode="JN" term="%22Revista+Cubana+de+Física%22">Revista Cubana de Física</searchLink>. 12/15/2025, Vol. 42 Issue 2, p96-102. 7p.
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  Data: <searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22FERROELECTRIC+crystals%22">FERROELECTRIC crystals</searchLink><br /><searchLink fieldCode="DE" term="%22LEAD+titanate%22">LEAD titanate</searchLink><br /><searchLink fieldCode="DE" term="%22ANTIPHASE+boundaries%22">ANTIPHASE boundaries</searchLink><br /><searchLink fieldCode="DE" term="%22DIFFRACTION+patterns%22">DIFFRACTION patterns</searchLink><br /><searchLink fieldCode="DE" term="%22DOPING+agents+%28Chemistry%29%22">DOPING agents (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22MICROSTRUCTURE%22">MICROSTRUCTURE</searchLink><br /><searchLink fieldCode="DE" term="%22COHERENCE+%28Nuclear+physics%29%22">COHERENCE (Nuclear physics)</searchLink>
– Name: Abstract
  Label: Abstract (English)
  Group: Ab
  Data: The paper presents a study concerning the coherence and domain wall effects on the profile of selected X-ray diffraction (XRD) peaks from the ferroelectric system Pb0.92 Ln0.08 TiO3 (Ln3+ = La3+, Dy3+). The analysis focuses on the hkl-dependent broadening and asymmetry of certain diffraction peaks. The study was conducted using a diffraction model evaluated with experimentally determined parameters from XRD and Transmission Electron Microscopy (TEM). The results show that both coherence effects and domain wall scattering contribute significantly to peak asymmetries and diffuse intensity between (h00)/(00h) doublets. The results also show that these effects are sensitive to domain size being more pronounced in lower-order reflections. The choice of dopant directly impacts microstructural parameters. The study highlights the complexity of quantifying ferroelectric microstructures alone from diffraction data. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label: Abstract (Spanish)
  Group: Ab
  Data: El artículo presenta un estudio sobre los efectos de coherencia y de pared de dominio en el perfil de determinados máximos de difracción de rayos X (DRX) del sistema ferroeléctrico Pb0.92Ln0.08 TiO3 (Ln3+ = La3+, Dy3+). El análisis se centra en el ensanchamiento y la asimetría dependientes de hkl de ciertos picos de difracción. El estudio se realizó utilizando un modelo de difracción evaluado con parámetros determinados experimentalmente mediante DRX y microscopía electrónica de transmisión. Los resultados muestran que tanto los efectos de coherencia como la dispersión de pared de dominio contribuyen significativamente a las asimetrías de los picos y a la intensidad difusa entre los dobletes (h00)/(00h). Los resultados también muestran que estos efectos son sensibles al tamaño del dominio y es más pronunciado en reflexiones de orden inferior. La elección del dopante afecta directamente a los parámetros microestructurales. El estudio destaca la complejidad de cuantificar las microestructuras ferroeléctricas únicamente a partir de datos de difracción. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>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. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 7
        StartPage: 96
    Subjects:
      – SubjectFull: X-ray diffraction
        Type: general
      – SubjectFull: FERROELECTRIC crystals
        Type: general
      – SubjectFull: LEAD titanate
        Type: general
      – SubjectFull: ANTIPHASE boundaries
        Type: general
      – SubjectFull: DIFFRACTION patterns
        Type: general
      – SubjectFull: DOPING agents (Chemistry)
        Type: general
      – SubjectFull: MICROSTRUCTURE
        Type: general
      – SubjectFull: COHERENCE (Nuclear physics)
        Type: general
    Titles:
      – TitleFull: EFFECTS OF COHERENCE AND DOMAIN WALLS ON DIFFRACTION PROFILES IN RARE-EARTH DOPED PbTiO3.
        Type: main
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            NameFull: CAMEJO-GONZÁLEZ, D.
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            NameFull: PENTÓN-MADRIGAL, A.
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              Text: 12/15/2025
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              Y: 2025
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