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Title: LEED-IV study of the rutile TiO{sub 2}(110)-1x2 surface with a Ti-interstitial added-row reconstruction

Abstract

Upon sputtering and annealing in UHV at {approx}1000 K, the rutile TiO{sub 2}(110) surface undergoes a 1x1{yields}1x2 phase transition. The resulting 1x2 surface is Ti rich, formed by strands of double Ti rows as seen on scanning tunneling microscopic images, but its detailed structure and composition have been subject to debate in the literature for years. Recently, Park et al. [Phys. Rev. Lett. 96, 226105 (2006)] have proposed a model where Ti atoms are located on interstitial sites with Ti{sub 2}O stoichiometry. This model, when it is analyzed using LEED-IV data [Phys. Rev. Lett. 96, 0055502 (2006)], does not yield an agreement between theory and experiment as good as the previous best fit for Onishi and Iwasawa's model for the long-range 1x2 reconstruction. Therefore, the Ti{sub 2}O{sub 3} added row is the preferred one from the point of view low-energy electron diffraction.

Authors:
; ; ; ; ;  [1];  [2];  [3]
  1. Instituto de Ciencia de Materiales (CSIC), Cantoblanco, 28049 Madrid (Spain)
  2. Centro de Investigacion en Optica y Nanofisica, Universidad de Murcia, Campus Espinardo, 30100 Murcia (Spain)
  3. Centro de Astrobiologia (CSIC-INTA), Carretera de Ajalvir km. 4, 28850 Torrejon de Ardoz, Madrid (Spain)
Publication Date:
OSTI Identifier:
20976707
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics; Journal Volume: 75; Journal Issue: 8; Other Information: DOI: 10.1103/PhysRevB.75.081402; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANNEALING; ATOMS; ELECTRON DIFFRACTION; IMAGES; INTERSTITIALS; PHASE TRANSFORMATIONS; RUTILE; SCANNING TUNNELING MICROSCOPY; SPUTTERING; SURFACES; TITANIUM OXIDES; TUNNEL EFFECT

Citation Formats

Blanco-Rey, M., Mendez, J., Lopez, M. F., Roman, E., Martin-Gago, J. A., Andres, P. L. de, Abad, J., and Rogero, C.. LEED-IV study of the rutile TiO{sub 2}(110)-1x2 surface with a Ti-interstitial added-row reconstruction. United States: N. p., 2007. Web. doi:10.1103/PHYSREVB.75.081402.
Blanco-Rey, M., Mendez, J., Lopez, M. F., Roman, E., Martin-Gago, J. A., Andres, P. L. de, Abad, J., & Rogero, C.. LEED-IV study of the rutile TiO{sub 2}(110)-1x2 surface with a Ti-interstitial added-row reconstruction. United States. doi:10.1103/PHYSREVB.75.081402.
Blanco-Rey, M., Mendez, J., Lopez, M. F., Roman, E., Martin-Gago, J. A., Andres, P. L. de, Abad, J., and Rogero, C.. Thu . "LEED-IV study of the rutile TiO{sub 2}(110)-1x2 surface with a Ti-interstitial added-row reconstruction". United States. doi:10.1103/PHYSREVB.75.081402.
@article{osti_20976707,
title = {LEED-IV study of the rutile TiO{sub 2}(110)-1x2 surface with a Ti-interstitial added-row reconstruction},
author = {Blanco-Rey, M. and Mendez, J. and Lopez, M. F. and Roman, E. and Martin-Gago, J. A. and Andres, P. L. de and Abad, J. and Rogero, C.},
abstractNote = {Upon sputtering and annealing in UHV at {approx}1000 K, the rutile TiO{sub 2}(110) surface undergoes a 1x1{yields}1x2 phase transition. The resulting 1x2 surface is Ti rich, formed by strands of double Ti rows as seen on scanning tunneling microscopic images, but its detailed structure and composition have been subject to debate in the literature for years. Recently, Park et al. [Phys. Rev. Lett. 96, 226105 (2006)] have proposed a model where Ti atoms are located on interstitial sites with Ti{sub 2}O stoichiometry. This model, when it is analyzed using LEED-IV data [Phys. Rev. Lett. 96, 0055502 (2006)], does not yield an agreement between theory and experiment as good as the previous best fit for Onishi and Iwasawa's model for the long-range 1x2 reconstruction. Therefore, the Ti{sub 2}O{sub 3} added row is the preferred one from the point of view low-energy electron diffraction.},
doi = {10.1103/PHYSREVB.75.081402},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 8,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}