Change search
ReferencesLink to record
Permanent link

Direct link
Oxygen structures on Fe(110)
KTH, Superseded Departments, Physics.ORCID iD: 0000-0003-1631-4293
KTH, Superseded Departments, Physics.
KTH, Superseded Departments, Physics.
KTH, Superseded Departments, Physics.
Show others and affiliations
2003 (English)In: Surface Science, ISSN 0039-6028, E-ISSN 1879-2758, Vol. 527, no 03-jan, 163-172 p.Article in journal (Refereed) Published
Abstract [en]

The adsorption of oxygen on a Fe(110) single crystal has been studied by means of high resolution photoelectron spectroscopy (HRPES) and scanning tunneling microscopy (STM). Core level spectra were analyzed in detail on both clean and adsorbate covered surfaces. A shoulder on the high binding energy side of the Fe 2p core level indicates a structure comprising multiple components interpreted as an exchange split of the final state due to interaction between the 2p and 3d electrons. After adsorption of oxygen, (2 x 5), (2 x 2) and (3 x 1) reconstructions were observed with atomically resolved STM. The iron surface was further exposed to gradually higher doses of oxygen. Deconvolution of the O 1s HRPES spectra revealed two components separated approximately by 0.4 eV. The component at lower binding energy dominates at low coverage, while the high binding energy component increases in intensity with increasing O coverage. The formation of oxides was observed in the Fe 2p spectrum in the region between 708 and 710 eV. Further, well ordered iron oxides were grown by exposure to oxygen at 250 degreesC. The O 1s core level contained a single component with a binding energy similar to that of the high energy component in the just discussed O 1s spectrum. Low energy electron diffraction and STM images of this structure showed a large moire pattern with a 22.1 Angstrom x 30.9 Angstrom unit cell.

Place, publisher, year, edition, pages
2003. Vol. 527, no 03-jan, 163-172 p.
Keyword [en]
iron, oxygen, photoelectron spectroscopy, scanning tunneling microscopy, core-level photoemission, magnetic linear dichroism, thin oxide-films, resolved photoemission, fe 2p, photoelectron-spectra, circular-dichroism, quantitative xps, iron surfaces, oxidation
National Category
Materials Engineering
URN: urn:nbn:se:kth:diva-22325DOI: 10.1016/s0039-6028(03)00018-9ISI: 000181571000026OAI: diva2:341023
QC 20100525 QC 20111129Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2011-11-29Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Weissenrieder, JonasGöthelid, MatsMånsson, Martinvon Schenck, HenrikTjernberg, OscarKarlsson, Ulf O.
By organisation
In the same journal
Surface Science
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 34 hits
ReferencesLink to record
Permanent link

Direct link