Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/264662
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Deconvolution of Phonon Scattering by Ferroelectric Domain Walls and Point Defects in a PbTiO3Thin Film Deposited in a Composition-Spread Geometry |
Autor: | Bugallo, David; Langenberg, Eric CSIC ORCID; Ferreiro-Vila, Elías CSIC ORCID; Smith, Eva H.; Stefani, Christina CSIC ORCID; Batlle, Xavier; Catalán, Gustau CSIC ORCID; Domingo, Neus CSIC ORCID; Schlom, Darrell G.; Rivadulla, Francisco | Palabras clave: | Thermal conductivity Phonons Defects Mathematical methods Polarization Composition-spread combinatorial study Ferroelectrics Thermal conductivity |
Fecha de publicación: | 15-sep-2021 | Editor: | ACS Publications | Citación: | ACS Applied Materials and Interfaces 13(38): 45679-45685 (2021) | Resumen: | We present a detailed analysis of the temperature dependence of the thermal conductivity of a ferroelectric PbTiO3 thin film deposited in a composition-spread geometry enabling a continuous range of compositions from ∼25% titanium deficient to ∼20% titanium rich to be studied. By fitting the experimental results to the Debye model we deconvolute and quantify the two main phonon-scattering sources in the system: ferroelectric domain walls (DWs) and point defects. Our results prove that ferroelectric DWs are the main agent limiting the thermal conductivity in this system, not only in the stoichiometric region of the thin film ([Pb]/[Ti] ≈ 1) but also when the concentration of the cation point defects is significant (up to ∼15%). Hence, DWs in ferroelectric materials are a source of phonon scattering at least as effective as point defects. Our results demonstrate the viability and effectiveness of using reconfigurable DWs to control the thermal conductivity in solid-state devices. | Versión del editor: | http://doi.org/10.1021/acsami.1c08758 | URI: | http://hdl.handle.net/10261/264662 | DOI: | 10.1021/acsami.1c08758 | Identificadores: | doi: 10.1021/acsami.1c08758 issn: 1944-8252 |
Aparece en las colecciones: | (CIN2) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
Page view(s)
34
checked on 17-abr-2024
Download(s)
4
checked on 17-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.