@article {4656,
	title = {Tensor LEED analyses for three chemisorbed structures formed by iodine on a Pt(111) surface},
	journal = {Surface Review and Letters},
	volume = {6},
	number = {5},
	year = {1999},
	note = {ISI Document Delivery No.: 300LQTimes Cited: 17Cited Reference Count: 406th International Conference on the Structure of Surfaces (ICSOS-6)JUL 26-30, 1999VANCOUVER, CANADAUniv British Columbia},
	month = {Oct},
	pages = {871-881},
	type = {Proceedings Paper},
	abstract = {Three distinct ordered iodine structures on a Pt(lll) surface have been studied with LEED crystallography in the coverage range 0.33-0.44 monolayers. These surfaces have translational symmetries of the ((root 3 x root 3)R30 degrees, (root 7 x root 7)R19.1 degrees and (3 x 3) types, and they all involve overlayer adsorption on the basically unreconstructed metal structures. The root 3 surface phase is indicated to have essentially all I atoms adsorbed at the regular threefold sites of the fee type (i.e. 3f sites), with no significant involvement by the corresponding sites of the hcp type (i.e. 3h sites). The root 7 structure has one I on an atop Pt site, and one each at 3f and 3h sites per unit mesh, while the (3 x 3) surface has one I on an atop site and three on bridge sites per unit mesh. The I corrugation is about 0.5 Angstrom for the root 7 structure, but is reduced to around 0.1 Angstrom at the (3 x 3) surface. The surface I-Pt bond lengths from these analyses show a general tendency to follow trends expected with the varying I coordination numbers. A preliminary discussion is given for uncertainties associated with some relaxations indicated in the metallic structures.},
	keywords = {ADSORBATES, ADSORPTION, ELECTROCHEMISTRY, ENERGY-ELECTRON-DIFFRACTION, METAL-SURFACES, PT(100), RELIABILITY, RH(111), SCANNING TUNNELING MICROSCOPY, TRANSFORMATIONS},
	isbn = {0218-625X},
	url = {<Go to ISI>://000086254800043},
	author = {Saidy, M. and Mitchell, K. A. R. and Furman, S. A. and Labayen, M. and Harrington, D. A.}
}
@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.}
}
