English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/168401
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Understanding atomic-resolved STM images on TiO2(110)-(1 × 1) surface by DFT calculations

AutorSánchez-Sánchez, Carlos ; González Pascual, César; Jelinek, Pavel; Méndez, J.; Andrés, Pedro L. de ; Martín-Gago, José A. ; López, María Francisca
Fecha de publicación8-sep-2010
EditorInstitute of Physics Publishing
CitaciónNanotechnology 21: 405702 (2010)
ResumenWe present a combination of experimental STM images and DFT calculations to understand the atomic scale contrast of features found in high-resolution STM images. Simulating different plausible structural models for the tip, we have been able to reproduce various characteristics previously reported in experimental images on TiO2(110)-(1 × 1) under controlled UHV conditions. Our results allow us to determine the influence of different chemical and morphological tip terminations on the atomic-resolution STM images of the TiO2(110)-(1 × 1) surface. The commonest images have been properly explained using standard models for a W tip, either clean or with a single O atom located at the apex. Furthermore, a double transfer of oxygen atoms can account for different types of bizarre atomic-resolution features occasionally seen, and not conclusively interpreted before. Importantly, we discuss how typical point-defects are imaged on this surface by different tips, namely bridging O vacancies and adsorbed OH groups.
Versión del editorhttps://doi.org/10.1088/0957-4484/21/40/405702
Aparece en las colecciones: (ICMM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Mostrar el registro completo

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.