Surface structures on sputtered/annealed WC(0001)
2000 (English)In: Journal of Physics: Condensed Matter, ISSN 0953-8984, E-ISSN 1361-648X, Vol. 12, no 6, 773-782 p.Article in journal (Refereed) Published
We use scanning tunnelling microscopy, Auger electron spectroscopy and low energy electron diffraction to study different tungsten and carbon terminated surface reconstructions on the sputtered/annealed WC(0001) surface. The tungsten terminated surface encompasses a (root 7 x root 7)R19 degrees W-trimer structure, a (root 3 x root 7) reconstruction representing a transition structure from the (root 7 x root 7)R19 degrees reconstruction to a (6 x 1) phase which consists of a quadratic W overlayer on the first close-packed carbidic carbon layer. The carbon terminated WC(0001) surface consists of a single graphitic carbon layer on top of the (6 x 1) structure.
Place, publisher, year, edition, pages
2000. Vol. 12, no 6, 773-782 p.
scanning tunneling microscopy, ion-scattering spectroscopy, resolution core-level, electronic-structure, tic(111) surface, stm, recombination, adsorption, carbides, nitrides
IdentifiersURN: urn:nbn:se:kth:diva-19575ISI: 000085510400014OAI: oai:DiVA.org:kth-19575DiVA: diva2:338267
QC 201005252010-08-102010-08-10Bibliographically approved