UNSPECIFIED (1997) Structure determination of Si(100)(2x1)/NH2 using scanned-energy mode photoelectron diffraction. JOURNAL OF PHYSICS-CONDENSED MATTER, 9 (40). pp. 8419-8432. ISSN 0953-8984

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Abstract

A scanned-energy mode photoelectron diffraction study of the Si(100)(2 x 1) surface with adsorbed NH2 has provided quantitative determination of key structural parameters previously only predicted from theoretical calculations. The N atoms are found to occupy off-atop sites at a dimerized surface Si atom with an N-S1 bondlength of 1.73 +/- 0.03 Angstrom and bond angle relative to the surface normal of 21+/-4 degrees. The positions of Si atoms in the dimer to which the adsorbates are bonded are found to indicate that the marked asymmetry of this dimer on the clean surface is lost as a result of the adsorption. The conclusions are discussed in relation to published results from less direct experimental probes and the results of theoretical model calculations.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Journal or Publication Title:	JOURNAL OF PHYSICS-CONDENSED MATTER
Publisher:	IOP PUBLISHING LTD
ISSN:	0953-8984
Date:	6 October 1997
Volume:	9
Number:	40
Number of Pages:	14
Page Range:	pp. 8419-8432
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/16338

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