UNSPECIFIED (2001) Chemical-state specificity in surface structure determination. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 72 (4). pp. 421-428. ISSN 0947-8396

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Abstract

In the pursuit of an understanding of complex surfaces, the problem of obtaining quantitative structural information about local adsorbate geometry is especially difficult. Conventional diffraction methods rely on long-range order of the adsorbed species, rarely present in complex coadsorption systems. Elementally specific local structural probes can help, but ultimately one also requires chemical-state specificity. This can be achieved in structural methods that involve detection of photoelectrons through the well-known 'chemical shifts' in core-level photoelectron binding energies; specific methods of this type are scanned-energy mode photoelectron diffraction (PhD) and normal-incidence X-ray standing waves (NISXW). Recent examples of chemical-shift PhD and NIXSW applications to complex coadsorption systems and to larger molecular adsorbates demonstrate this potential.

Item Type:	Journal Article
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) Q Science > QC Physics
Journal or Publication Title:	APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Publisher:	SPRINGER-VERLAG
ISSN:	0947-8396
Date:	April 2001
Volume:	72
Number:	4
Number of Pages:	8
Page Range:	pp. 421-428
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/12306

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