Vibrational motion of hydrogen atoms chemisorbed on Ni(100) |
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| Institution: | 1. Department of Anesthesiology and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA;2. Department of Neurosurgery, Johns Hopkins University, Baltimore, MD, USA;3. Hunter Pain Specialists, Broadmeadow, New South Wales, Australia;4. Neurosurgical Services, Clinical Research, Anesthesia Pain Care Consultants, Tamarac, FL, USA;5. Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden;6. Division of Pain Medicine, University Hospitals, Cleveland Medical Center, Cleveland, OH, USA;7. Department of Pain Medicine, The James Cook University Hospital, Middlesbrough, UK;8. Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA;9. Department of Anesthesiology, University of Michigan, Ann Arbor, MI, USA;10. Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA;1. Sorbonne Université, Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France;2. Department of Performance Psychology, Institute of Psychology, German Sport University Cologne, Cologne 50933, Germany;3. UFR STAPS, EA 4260 CESAMS, Normandie Université, 14000 Caen, France;1. Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, NC 27412, USA;2. Department of Human Development and Family Studies, University of North Carolina at Greensboro, Greensboro, NC 27412, USA;1. Amsterdam Institute for Addiction Research, Amsterdam UMC, Location AMC, Department of Psychiatry, University of Amsterdam, Amsterdam, The Netherlands;2. Department of Philosophy, Radboud University, Nijmegen, The Netherlands;3. Medical Library, Amsterdam UMC, Location AMC, Amsterdam, The Netherlands;4. Department of Anatomy & Neurosciences, Amsterdam UMC, Location VUmc, Amsterdam, The Netherlands;5. Arkin and Jellinek, Mental Health Care, Amsterdam, The Netherlands;1. Department of Psychiatry & Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada;2. Department of Neuroscience, University of Pittsburgh, Pittsburgh, PA, United States;3. APC Microbiome Institute, University College Cork, Cork, Ireland;4. Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland;1. College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, PR China;2. Shaoxing Research Institute, Zhejiang University of Technology, Shaoxing, 312000, PR China;3. Berzelius (Nanjing) Co., Ltd., Building 3, 30 Fengzhan Road, Nanjing, 210012, PR China |
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| Abstract: | The vibrational motion of hydrogen and deuterium atoms adsorbed, at different coverages, on the Ni(100) surface has been investigated using high-resolution electron-energy-loss spectroscopy. In specular scattering the vibrational spectra show only one prominent fundamental excitation, which can be reconciled with the perpendicular motion of a localized adatom in a fairly harmonic potential well. Substantial coverage induced vibrational energy shifts are observed. These are caused by static and dynamic adsorbate-adsorbate interaction effects, as revealed by spectra for a substitutionally disordered p(1 × 1)(H + D) structure and a model calculation based upon the effective medium theory. |
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