Oxygen-induced surface (2×2)p4g reconstruction of Rh(001)

Y. G. Shen; A. Qayyum; D. J. O'Connor; B. V. King

doi:10.1103/PhysRevB.58.10025

Oxygen-induced surface (2×2)p4g reconstruction of Rh(001)

Y. G. Shen
, A. Qayyum
, D. J. O'Connor
, B. V. King

Research output: Journal Publications and Reviews › RGC 22 - Publication in policy or professional journal

29 Citations (Scopus)

Abstract

The room-temperature oxygen-induced (2×2)p4g clock reconstruction of Rh(001) has been investigated by low-energy alkali ion scattering, recoiling spectrometry, low-energy electron diffraction (LEED), and three-dimensional classical scattering simulations. The oxygen atoms are confirmed to be in the fourfold hollow sites to produce the glide plane symmetry of the substrate observed in the LEED pattern. Quantitative values for the geometrical parameters were obtained by using a reliability R-factor analysis to compare the experimental and simulated azimuthal scans. The lateral clockwise-counterclockwise displacement of the surface rhodium atoms is Δx=0.2±0.1 Å and the oxygen height above the substrate is Δh=0.6±0.1 Å. The driving force for this clock reconstruction is discussed and compared with previous results on the Ni(001)-(2×2)p4g-C surface.

© 1998 The American Physical Society

Original language	English
Pages (from-to)	10025-10030
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	58
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevB.58.10025
Publication status	Published - 15 Oct 1998
Externally published	Yes

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title = "Oxygen-induced surface (2×2)p4g reconstruction of Rh(001)",

abstract = "The room-temperature oxygen-induced (2×2)p4g clock reconstruction of Rh(001) has been investigated by low-energy alkali ion scattering, recoiling spectrometry, low-energy electron diffraction (LEED), and three-dimensional classical scattering simulations. The oxygen atoms are confirmed to be in the fourfold hollow sites to produce the glide plane symmetry of the substrate observed in the LEED pattern. Quantitative values for the geometrical parameters were obtained by using a reliability R-factor analysis to compare the experimental and simulated azimuthal scans. The lateral clockwise-counterclockwise displacement of the surface rhodium atoms is Δx=0.2±0.1 {\AA} and the oxygen height above the substrate is Δh=0.6±0.1 {\AA}. The driving force for this clock reconstruction is discussed and compared with previous results on the Ni(001)-(2×2)p4g-C surface. {\textcopyright} 1998 The American Physical Society",

author = "Shen, \{Y. G.\} and A. Qayyum and O'Connor, \{D. J.\} and King, \{B. V.\}",

year = "1998",

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doi = "10.1103/PhysRevB.58.10025",

language = "English",

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journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "0163-1829",

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TY - JOUR

T1 - Oxygen-induced surface (2×2)p4g reconstruction of Rh(001)

AU - Shen, Y. G.

AU - Qayyum, A.

AU - O'Connor, D. J.

AU - King, B. V.

PY - 1998/10/15

Y1 - 1998/10/15

N2 - The room-temperature oxygen-induced (2×2)p4g clock reconstruction of Rh(001) has been investigated by low-energy alkali ion scattering, recoiling spectrometry, low-energy electron diffraction (LEED), and three-dimensional classical scattering simulations. The oxygen atoms are confirmed to be in the fourfold hollow sites to produce the glide plane symmetry of the substrate observed in the LEED pattern. Quantitative values for the geometrical parameters were obtained by using a reliability R-factor analysis to compare the experimental and simulated azimuthal scans. The lateral clockwise-counterclockwise displacement of the surface rhodium atoms is Δx=0.2±0.1 Å and the oxygen height above the substrate is Δh=0.6±0.1 Å. The driving force for this clock reconstruction is discussed and compared with previous results on the Ni(001)-(2×2)p4g-C surface. © 1998 The American Physical Society

AB - The room-temperature oxygen-induced (2×2)p4g clock reconstruction of Rh(001) has been investigated by low-energy alkali ion scattering, recoiling spectrometry, low-energy electron diffraction (LEED), and three-dimensional classical scattering simulations. The oxygen atoms are confirmed to be in the fourfold hollow sites to produce the glide plane symmetry of the substrate observed in the LEED pattern. Quantitative values for the geometrical parameters were obtained by using a reliability R-factor analysis to compare the experimental and simulated azimuthal scans. The lateral clockwise-counterclockwise displacement of the surface rhodium atoms is Δx=0.2±0.1 Å and the oxygen height above the substrate is Δh=0.6±0.1 Å. The driving force for this clock reconstruction is discussed and compared with previous results on the Ni(001)-(2×2)p4g-C surface. © 1998 The American Physical Society

UR - https://www.scopus.com/pages/publications/0000074726

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0000074726&origin=recordpage

U2 - 10.1103/PhysRevB.58.10025

DO - 10.1103/PhysRevB.58.10025

M3 - RGC 22 - Publication in policy or professional journal

SN - 0163-1829

VL - 58

SP - 10025

EP - 10030

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 15

ER -

Oxygen-induced surface (2×2)p4g reconstruction of Rh(001)

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