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  UV-laser-induced desorption of NO from the pure and modified Cr2O3(0001) surfaces: spin effects in surface-state-induced desorption

Wilde, M., Al-Shamery, K., & Freund, H.-J. (1998). UV-laser-induced desorption of NO from the pure and modified Cr2O3(0001) surfaces: spin effects in surface-state-induced desorption. In Proceedings of SPIE (pp. 152-159). Bellingham, Washington: SPIE.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0007-4EF1-2 Version Permalink: https://hdl.handle.net/21.11116/0000-0007-4EF2-1
Genre: Conference Paper

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 Creators:
Wilde, Markus1, Author           
Al-Shamery, Katharina1, Author           
Freund, Hans-Joachim1, Author           
Affiliations:
1Chemical Physics, Fritz Haber Institute, Max Planck Society, ou_24022              

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 Abstract: We shall report the UV-laser induced desorption of NO/Cr2O3(0001) and the coadsorbate system NO/K/Cr2O3(0001). Resonance enhanced multiphoton ionization was used for state selective detection of the desorbing NO after excitation with pulses of nanosecond duration and desorption laser energies between 3.5 eV and 6.4 eV. There are two adsorbate species of NO, a chemisorbed and a physisorbed species. We shall focus on data of the chemisorbed species. The main emphasis within this paper will be put on electron spin effects, particularly the preferential population of a fast translational desorption channel for the 2(Pi) 3/2 state observed specifically in connection with surface state induced processes at desorption energies of 5.0 eV. For those processes changes within the final state distributions of desorbing NO are fond when modifying the electronic surface structure via adsorption of small amounts of potassium.

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Language(s): eng - English
 Dates: 1998-04-30
 Publication Status: Issued
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1117/12.307128
 Degree: -

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Title: Optoelectronics and High-Power Lasers and Applications
Place of Event: San Jose, CA, United States
Start-/End Date: 1998

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Title: Proceedings of SPIE
Source Genre: Proceedings
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Publ. Info: Bellingham, Washington : SPIE
Pages: 8 Volume / Issue: 3272 Sequence Number: - Start / End Page: 152 - 159 Identifier: -