@article {4657,
	title = {Tensor LEED analysis for the Ni(111)-(root 7 x root 7)R19.1 degrees-P surface structure: Comparison with other root 7 systems},
	journal = {Surface and Interface Analysis},
	volume = {28},
	number = {1},
	year = {1999},
	note = {ISI Document Delivery No.: 234JZTimes Cited: 1Cited Reference Count: 36Asia-Pacific Surface and Interface Analysis Conference 1998 (APSIAC 98)NOV 30-DEC 04, 1998SINGAPORE, SINGAPORE},
	month = {Aug},
	pages = {84-91},
	type = {Proceedings Paper},
	abstract = {A crystallographic analysis is reported using low-energy electron diffraction (LEED) in the tensor LEED approach for the (root 7 x root 7)R19.1 degrees structure formed by 3/7 monolayer of phosphorus at the Ni(111) surface. This surface has a novel structure in which each phosphorus atom bonds to seven neighbouring Ni atoms, four in the top layer and three in the second layer, at an average distance close to 2.39 Angstrom. Formally this reconstruction involves three neighbouring Ni atoms in a triangular arrangement per unit mesh of the original unreconstructed surface being replaced by three phosphorus atoms. A discussion is included of the structural relaxations that occur in this surface as the demands of Ni-P bonding are balanced against those for Ni-Ni and P-P contributions. Comparisons are made with the root 7 reconstructions observed for related systems, including those for P/Rh(111), S/Pd(111) and S/Cu(111). Copyright (C) 1999 John Wiley \& Sons, Ltd.},
	keywords = {(ROOT-3X-ROOT-3)R30-DEGREES, analysis, chemisorption, CRYSTALLOGRAPHIC, ENERGY-ELECTRON-DIFFRACTION, LEED, METAL-SURFACES, Ni, NI(111), P, RAY STANDING-WAVE, RECONSTRUCTION, RELAXATIONS, SUBSTRATE, SULFUR},
	isbn = {0142-2421},
	url = {<Go to ISI>://000082482200018},
	author = {Saidy, M. and Zhou, M. Y. 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.}
}
