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asdf1
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in a crystal, when proving the debye frequency, why is the existence of longitudinal lattice ignored? why is there longitudinal lattice in the first place?
That's not enough. You must provide the exact quote from Reed-Hill.i think it's in "physical metallogy principles" by reed
The Debye frequency in crystals refers to the characteristic frequency at which lattice vibrations or phonons occur in a crystal lattice. It is named after Peter Debye, a physicist who studied the properties of crystals.
The Debye frequency is directly related to the longitudinal lattice vibrations, as it represents the highest frequency that can be sustained by the lattice in a longitudinal wave. It is also known as the longitudinal Debye frequency.
The Debye frequency in crystals is affected by several factors, including the density of the crystal, the strength of the interatomic bonds, and the temperature of the crystal. As these factors change, the Debye frequency also changes.
The Debye frequency is a crucial parameter in crystal studies as it helps determine the thermal and mechanical properties of crystals. It also provides insights into the behavior of lattice vibrations and helps in understanding the lattice dynamics of a crystal.
The Debye frequency can be experimentally determined using techniques such as X-ray diffraction, Raman spectroscopy, and neutron scattering. These methods allow for the measurement of lattice vibrations and the determination of the Debye frequency in a crystal.