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  The Sommerfeld ground-wave limit for a molecule adsorbed at a surface.

Chen, L., Lau, J. A., Schwarzer, D., Meyer, J., Verma, V. B., & Wodtke, A. M. (2019). The Sommerfeld ground-wave limit for a molecule adsorbed at a surface. Science, 363(6423), 158-161. doi:10.1126/science.aav4278.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-AF43-E Version Permalink: http://hdl.handle.net/21.11116/0000-0002-F0E8-9
Genre: Journal Article

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 Creators:
Chen, L.1, Author              
Lau, J. A.1, Author              
Schwarzer, D.2, Author              
Meyer, J., Author
Verma, V. B., Author
Wodtke, A. M.1, Author              
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1Department of Dynamics at Surfaces, MPI for Biophysical Chemistry, Max Planck Society, ou_578600              
2Research Group of Reaction Dynamics, MPI for biophysical chemistry, Max Planck Society, ou_578601              

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 Abstract: Using a mid-infrared emission spectrometer based on a superconducting nanowire single-photon detector (SNSPD), we observe the dynamics of vibrational energy pooling of CO adsorbed at the surface of a NaCl crystal. After exciting a majority of the CO molecules to their first vibrationally excited state (v = 1), we observe infrared emission from states up to v = 27. Kinetic Monte Carlo simulations show that vibrational energy collects in a few CO molecules at the expense of those up to eight lattice sites away by selective excitation of NaCl's transverse phonons. The vibrating CO molecules behave like classical oscillating dipoles, losing their energy to NaCl lattice-vibrations via the electromagnetic near-field. This is analogous to Sommerfeld's description of the Earth's influence on radio transmission by ground waves.

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Language(s): eng - English
 Dates: 2018-12-132019-01-11
 Publication Status: Published in print
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 Rev. Method: Peer
 Identifiers: DOI: 10.1126/science.aav4278
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Title: Science
Source Genre: Journal
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Pages: - Volume / Issue: 363 (6423) Sequence Number: - Start / End Page: 158 - 161 Identifier: -