Measuring velocity of sound with nuclear resonant inelastic x-ray scattering

Details Measuring velocity of sound with nuclear resonant inelastic x-ray scattering Measuring velocity of sound with nuclear resonant inelastic x-ray scattering

2002-12-17

arxiv.org/abs/cond-mat/0212387v2

Phys. Rev. B 67, 094304 (2003)

Physics

Condensed Matter

Scientific paper

10.1103/PhysRevB.67.094304

Nuclear resonant inelastic x-ray scattering is used to measure the projected partial phonon density of states of materials. A relationship is derived between the low-energy part of this frequency distribution function and the sound velocity of materials. Our derivation is valid for harmonic solids with Debye-like low-frequency dynamics. This method of sound velocity determination is applied to elemental, composite, and impurity samples which are representative of a wide variety of both crystalline and noncrystalline materials. Advantages and limitations of this method are elucidated.

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