Surface instability induced by the singular scattering of a three-dimensional Phonon |
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| Institution: | 1. Department of Physical Therapy, Centro Universitário São Camilo (CUSC), São Paulo, SP, Brazil;2. Trata Institute – Knee and Hip Rehabilitation / ITC Vertebral, São Paulo, SP, Brazil;3. Department of Physical Therapy, Universidade Federal da Bahia (UFBA), Salvador, BA, Brazil;2. Department of Medicine, Oregon Health and Science University, Portland, Oregon;3. Division of Rheumatology and Immunology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee;4. Epidemiology Group and Aberdeen Centre for Arthritis and Musculoskeletal Health, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, United Kingdom;5. Departments of Anesthesiology, Medicine (Rheumatology), and Psychiatry, University of Michigan Medical School, Ann Arbor, Michigan;6. Department of Medicine, Tufts University School of Medicine, Boston, Massachusetts;11. Division of Rheumatology, Department of Medicine, McGill University, Montreal, Quebec;12. Division of Rheumatology, Department of Medicine, Federal University of Parana, Curitiba, Brazil;8. Division of Rheumatology, Department of Medicine, University of Florida, Gainesville, Florida;9. Division of Rheumatology, Department of Medicine, Milan University, Milan, Italy;10. Department of Medicine, H. Soroka Medical Center, Ben Gurion University of the Negev, Beer Sheva, Israel |
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| Abstract: | The conditions under which a bulk phonon, incident on the surface of a semi-infinite crystal, may induce an infinite vibrational amplitude inside the surface layers, are analysed. This mechanism is proposed as a possible driving force for surface reconstruction. A numerical application given for W(100) shows that this mechanism is a better candidate, to account for surface reconstructed W(100)/c(2 × 2), than the soft phonon process. |
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