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A core level study of ZrN (100) and NbN (100)
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology.
2000 (English)In: Materials Science Forum, ISSN 0255-5476, E-ISSN 1662-9752, Vol. 325-3, 335-340 p.Article in journal (Refereed) Published
Abstract [en]

Results of a photoemission study of the (100) surface of ZrN and NbN are reported. For the N 1s level a negative surface core level shift is identified on both surfaces. For the metal 3d levels a negative surface shift is determined on ZrN while that on NbN is found to be positive. Negative surface core level shifts are predicted for the metal 3d level in both cases using the thermochemical model. Upon oxygen exposures chemically shifted components appear both in the metal 3d and N Is spectra for both samples. From the shape of the N Is spectra it appears as if different N Is sites are created in the surface region upon oxygen exposures.

Place, publisher, year, edition, pages
2000. Vol. 325-3, 335-340 p.
Keyword [en]
zirconium nitride, niobium nitride, surface core level shifts, oxygen exposures, photoemission
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-49639OAI: oai:DiVA.org:liu-49639DiVA: diva2:270535
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-12

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Johansson, Leif

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