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  Surface Action Spectroscopy: A Review and a Perspective on a New Technique to Study Vibrations at Surfaces

Liu, Y., Wu, Z., Kuhlenbeck, H., & Freund, H.-J. (2021). Surface Action Spectroscopy: A Review and a Perspective on a New Technique to Study Vibrations at Surfaces. The Chemical Record, 20(6), 1270-1283. doi:10.1002/tcr.202000111.

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tcr.202000111.pdf (Publisher version), 3MB
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2021
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 Creators:
Liu, Yun1, Author           
Wu, Zongfang1, 2, Author           
Kuhlenbeck, Helmut1, Author           
Freund, Hans-Joachim1, Author           
Affiliations:
1Chemical Physics, Fritz Haber Institute, Max Planck Society, ou_24022              
2Material Physics, School of Engineering Sciences, KTH Royal Institute of Technology, Stockholm, Sweden, ou_persistent22              

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 Abstract: A new vibrational spectroscopy method aimed at the investigation of solid surfaces in ultrahigh vacuum, called “Surface Action Spectroscopy (SAS)”, is described and the first results are reviewed. This technique is based on ideas and experiments performed in the gas phase. A surface is exposed to a messenger species at low temperature. This messenger species is desorbed via absorption of tunable infrared light from a free‐electron laser and the desorption rate of the messenger species is recorded via mass spectrometry. It is shown that the technique is extremely surface sensitive and we discuss the basic mechanisms of the technique. We show a feasibility study on a V2O3(0001) surface, where we know the surface structure. We then proceed to the example of iron oxide films to study the surface structure in parallel with calculations of the surface phonons, which allow us to confirm the surface structure of Fe3O4(111) to be Fetet terminated. It also provides evidence for the so‐called biphase structure. To conclude, we discuss possibilities to apply the technique to interesting questions in model and real catalysis, since the technique may provide interesting information independent of long‐range order of the sample.

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Language(s): eng - English
 Dates: 2020-09-092020-10-132021-06
 Publication Status: Published online
 Pages: 14
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/tcr.202000111
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Title: The Chemical Record
  Other : Chem. Rec.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: 14 Volume / Issue: 20 (6) Sequence Number: - Start / End Page: 1270 - 1283 Identifier: ISSN: 1527-8999
CoNE: https://pure.mpg.de/cone/journals/resource/110978984570327_1