Vibrations at surfaces.
نویسنده
چکیده
منابع مشابه
Rapid Note HREELS investigation of hydrogenated and deuterated GaN{0001} surfaces
The vibrational properties of clean, Hand D-covered GaN{0001} surfaces were investigated by high-resolution electron energy-loss spectroscopy. Auger electron spectroscopy and low-energy electron diffraction were utilized to monitor the surface cleanliness and structure, respectively. At the clean surface the Fuchs-Kliewer surface phonon frequency was determined to 700 cm−1 (86.8 meV). For the a...
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We study the resonant interaction of the OH stretch vibrations of water molecules at the surfaces of liquid water and ice using heterodyne-detected sum-frequency generation (HD-SFG) spectroscopy. By studying different isotopic mixtures of H2O and D2O, we vary the strength of the interaction, and we monitor the resulting effect on the HD-SFG spectrum of the OH stretch vibrations. We observe that...
متن کاملThe role of vibration in tactile speed perception.
The relative motion between the surface of an object and our fingers produces patterns of skin deformation such as stretch, indentation, and vibrations. In this study, we hypothesized that motion-induced vibrations are combined with other tactile cues for the discrimination of tactile speed. Specifically, we hypothesized that vibrations provide a critical cue to tactile speed on surfaces lackin...
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Dallmann CJ, Ernst MO, Moscatelli A. The role of vibration in tactile speed perception. J Neurophysiol 114: 3131–3139, 2015. First published September 30, 2015; doi:10.1152/jn.00621.2015.—The relative motion between the surface of an object and our fingers produces patterns of skin deformation such as stretch, indentation, and vibrations. In this study, we hypothesized that motion-induced vibra...
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Wheelchair users rely on their wheelchairs for mobility for extended periods of time every day. According to the International Standards Organization 2631-1 standard on human vibration, individuals in a seated position when exposed to whole-body vibrations (WBV) are at risk of injury. This study evaluated vibration exposure during manual and power wheelchair driving over nine sidewalk surfaces ...
متن کاملEnhanced Vibrations at Surfaces with Back-Bonds Nearly Parallel to the Surface
It has been discovered that several very different surfaces exhibit a common property: unusually large vibration amplitudes of the outermost atoms, well beyond the enhancement normally expected at typical clean surfaces. These special surfaces are: ice H2O(0001), α-Al2O3(0001), α-Ga(010) and Si(111)-(2x1). The root-mean-square vibration amplitudes in these surfaces are at least double the bulk ...
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عنوان ژورنال:
- Journal of physics. Condensed matter : an Institute of Physics journal
دوره 23 48 شماره
صفحات -
تاریخ انتشار 2011