@article {4655,
	title = {Tensor LEED analysis for the Cu(111)-(root x root 7)R19.1 degrees-S surface structure},
	journal = {Surface Science},
	volume = {441},
	number = {2-3},
	year = {1999},
	note = {ISI Document Delivery No.: 253RWTimes Cited: 11Cited Reference Count: 36},
	month = {Nov},
	pages = {425-435},
	type = {Article},
	abstract = {A tensor LEED analysis is reported for the (root 7 x root 7)R19.1 degrees structure formed by S at the Cu(lll)surface. A new structural model is found which corresponds to a modified version of the copper sulphide overlayer model first proposed by Domange and Oudar. In that model, the topmost layer has 3/7 monolayer each of Cu and S atoms, but the modification involves one S atom per unit mesh moving down to displace a Cu atom from the second metal layer. Relaxations among the topmost Cu atoms result in one S atom being effectively three-fold coordinate while the other two are sixfold coordinate and 12-fold coordinate: the averaged S-Cu bond lengths are indicated to equal 2.19, 2.47 and 2.62 Angstrom respectively. Some discussion is included of factors that may influence this choice of surface structure. (C) 1999 Elsevier Science B.V. All rights reserved.},
	keywords = {ADSORPTION, chemisorption, copper, ENERGY-ELECTRON-DIFFRACTION, LAYERS, low energy electron diffraction, LOW INDEX SINGLE CRYSTAL, METAL-SURFACES, MOLECULE, RAY STANDING-WAVE, RECONSTRUCTION, RU(0001), SUBSTRATE, SULFUR, sulphur, SURFACE, surface reconstruction},
	isbn = {0039-6028},
	url = {<Go to ISI>://000083570400024},
	author = {Saidy, M. and Mitchell, K. A. R.}
}
@article {4062,
	title = {LEED crystallographic analysis for the Rh(111)-(root 7x root 7)R19.1 degrees-P surface structure},
	journal = {Surface Science},
	volume = {372},
	number = {1-3},
	year = {1997},
	note = {ISI Document Delivery No.: WF207Times Cited: 7Cited Reference Count: 32},
	month = {Feb},
	pages = {312-322},
	type = {Article},
	abstract = {A recent communication [11] reported a novel structure for the (root 7 x root 7)R19.1 degrees reconstruction formed by P on the Rh(111) surface, and the present paper details the associated tensor LEED analysis. This reconstruction involves a packed arrangement of Rh pentagons and triangles for the topmost layer, with P atoms at 3/7 monolayer coverage occupying eight-coordinate sites created by the Rh pentagons. The nearly flat, densely packed Rh-P mixed layer (density of five Rh and three P atoms per seven Rh atoms in the substrate unit mesh) appears to provide a major stabilizing effect on this surface. The average P-Rh bond distance is indicated to be 2.52 Angstrom, slightly longer than that (2.38 A) in bulk Rh2P where the P atoms are also eight-coordinate. Some similarities are noted with the corresponding (rv (7) over bar x root 7)R19.1 degrees structures formed by S on the Pd(111), Cu(111) and Ag(111) surfaces.},
	keywords = {chemisorption, ENERGY ELECTRON-DIFFRACTION, HETEROCYCLIZATION SITES, low energy electron diffraction, low index single crystal surface, METAL-SURFACES, microscopy, PHOSPHORUS, rhodium, SULFIDED PD(111) SURFACE, SURFACE RELAXATION AND RECONSTRUCTION, TENSOR LEED},
	isbn = {0039-6028},
	url = {<Go to ISI>://A1997WF20700043},
	author = {Liu, W. and Wong, K. C. and Mitchell, K. A. R.}
}
@article {3856,
	title = {LEED crystallographic analysis for the Rh(111)-(2x1)-O surface structure},
	journal = {Surface Science},
	volume = {360},
	number = {1-3},
	year = {1996},
	note = {ISI Document Delivery No.: UX923Times Cited: 29Cited Reference Count: 32},
	month = {Jul},
	pages = {137-143},
	type = {Article},
	abstract = {A tensor LEED analysis is reported For the Rh(111)-(2 x 1)-O surface structure in which atoms in the O overlayer chemisorb close to the regular (fcc type) three-fold hollow sites for half-monolayer coverage. The structure shows significant relaxations: for example, a buckling of about 0.07 Angstrom is indicated in the first metal layer and O appears to displace laterally by about 0.05 Angstrom. The individual O-Rh bond lengths are around 2.01 and 1.92 Angstrom to top layer Rh atoms, which bond to two and one O atoms, respectively, but the average value (1.98 Angstrom) is close to that in bulk RhO2 (1.96 Angstrom). Comparison is also made with the previously determined O-Rh bond lengths in the Rh(110)-p2mg(2 x 1) surface structure.},
	keywords = {CLOSE-PACKED SURFACE, EJECTION, ENERGY-ELECTRON-DIFFRACTION, LAYER, low energy electron diffraction, low index single crystal surfaces, OXYGEN, P(2X2)O/RH(111), RECONSTRUCTION, RELAXATIONS, RH(111), rhodium, surface relaxations, THERMAL-DESORPTION},
	isbn = {0039-6028},
	url = {<Go to ISI>://A1996UX92300022},
	author = {Wong, K. C. and Liu, W. and Mitchell, K. A. R.}
}
