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Showing 1 to 14 of 14 for “"Debye-Waller"”.
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Debye-Waller Measurements in Silicon
Made available in DSpace on 2015-05-12T22:39:09Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7500318.PDF: 1619026 bytes, checksum: a990eb019e408b68fcb567b5304d9646 (MD5) Previous issue date: 1974
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Debye-Waller Measurements in Silicon
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2012-01-11T22:08:51Z No. of bitstreams: 1 1974_hardy.pdf: 1936467 bytes, checksum: 3957705d7ca9a62f897cbe640722d175 (MD5)
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X-Ray Debye -Waller Factor Measurements of Helium Crystals
… mass-scaling factor of 4/3 for the equivalent Debye temperature for the measured Debye-Waller factor was observed. This Debye temperature falls with increasing temperature, contrary to what would be expected for a quasi-harmonic model, most likely due to multi-phonon processes being present in …
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On the formulation and the calculation of the harmonic contributions to the Debye-Waller factor in metals (sodium)
… for the anharmonic contributions to the Debye-Waller factor up to 0(A ) and 0 L% ) £ where ^ is the scattering wave-vector] have been derived in a form suitable for cubic metals with small ion cores where the interatomic potential extends to many neighbours. This has been achieved in …
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An x-ray investigation of the lambda point and a determination of the Debye-Waller factor in potassium borohydride
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Metallurgy, 1962.
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The measured variation of the Debye-Waller factor of aluminum from 295K to 815K by using the energy dispersive x-ray diffraction technique
… reproducibility. Therefore the changes of the Debye-Waller factor from room temperature up to 815K for aluminum were determined with precision. Our results are in good agreement with those previously published.
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Spin-polarized low energy electron diffraction studies of Cu¿Au(001)
… to standard thermal scattering according to the Debye-Waller factor. In addition, angular studies of the specular diffraction were obtained, and may be used to characterize the ordered state at room temperature.
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Ab initio calculations of phonon properties and spectra in condensed matter
… and the phonon properties simulated, including Debye–Waller factors, phonon contributions the electron self–energy and spectral function, vibrational free energy, thermal expansion, and heat capacity.
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Chain dynamical theories of protein folding
… energy surface) are characterized by the local Debye-Waller factor for each residue about its native position. The description of the folding dynamics of minimally frustrated proteins is completed by considering the chain dynamics of crossing barriers on the resulting free energy profile. We …
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Semiclassical studies of decoherence produced by scattering
… although the peaks are here diminished by the Debye-Waller factor. However, in the case of inelastic scattering, the surface particles are displaced by the scattering atom itself and may then emit or absorb one or more phonons to the scatterer. Acoustic phonons produced by this process are …
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Investigation of the Photophysical Properties of pi-Conjugated Polymers. A Study by Non-Linear, Time-Resolved, and Single-Molecule Spectroscopy
… in great detail. From these data the Debye-Waller factor, i.e. the electron-phonon coupling strength, was calculated and for MeLPPP a weak electron-phonon coupling was found at 1.5 K. Moreover, there is strong evidence that the low-frequency vibrational modes, which are coupled to the …
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Hydrogen in thin film niobium
… to a Q dependent damping factor, similar to a Debye-Waller factor, which affects LROO peaks. This explains, qualitatively, the radial dependence seen in the transverse scans. A method is illustrated to quantitatively measure the lattice roughness and the fraction of the sample which is …
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Ultrahigh resolution surface phononics
… of temperature. The phenomenon is attributed to Debye-Waller attenuation. Theoretical analysis has also been performed to analyse the temperature dependence of the phonon peak intensity. The ratio between phonon peak height and elastic peak height versus temperature has been found to give the …
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Optical properties and thermal conductivity of resistive Au nanogranular films
… diffraction intensity decay, described using the Debye-Waller model, exhibited a slow decay with a time constant of 8.5 ± 0.7 ps, further indicating inefficient heat dissipation. These findings suggest that optimizing the grain size in nanogranular Au films could be crucial for improving thermal …