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Coupling of spin and vibrational degrees of freedom of adsorbates at metal surfaces probed by vibrational sum-frequency generation
Stockholm University, Faculty of Science, Department of Physics. Free University of Berlin .
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2013 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 103, no 13, 132403- p.Article in journal (Refereed) Published
Abstract [en]

Vibrational spectroscopy using sum-frequency generation has been used to investigate the coupling between a ferromagnetic thin film and adsorbed molecules, here CO on Ni/Cu(100). The CO stretching vibration exhibits a strong magnetic contrast with a pronounced temperature dependence, underlining the high sensitivity of this adsorbate-specific spectroscopy method. Our results indicate that the strong temperature dependence is caused by dynamical changes in the surface chemical bond when the CO stretch vibration is coupled to thermally excited external vibrational modes.

Place, publisher, year, edition, pages
2013. Vol. 103, no 13, 132403- p.
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Physical Sciences
URN: urn:nbn:se:su:diva-95769DOI: 10.1063/1.4822120ISI: 000325284500045OAI: diva2:661762


Available from: 2013-11-04 Created: 2013-11-04 Last updated: 2013-11-04Bibliographically approved

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Östrom, Henrik
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