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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?
Why Is Longitudinal Lattice Ignored When Proving Debye Frequency in Crystals?
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Homework Help Overview
The discussion revolves around the concept of Debye frequency in the context of crystal lattices, specifically questioning the treatment of longitudinal lattice modes in the proof of Debye frequency. Participants are exploring the relevance and implications of longitudinal lattice structures in this context.
Discussion Character
- Conceptual clarification, Assumption checking
Approaches and Questions Raised
- Participants are questioning why longitudinal lattice modes are ignored in the proof of Debye frequency and what their role is in crystal structures. There is also a request for references and clarification on the meaning of "proving the Debye frequency."
Discussion Status
The conversation is ongoing, with some participants seeking clarification on the definitions and implications of longitudinal lattices. There is a mix of inquiries about references and assertions regarding the treatment of longitudinal modes in Debye's calculations.
Contextual Notes
One participant mentions a specific reference, "Physical Metallurgy Principles" by Reed, but there is a call for more precise citations. The discussion reflects uncertainty about the assumptions made in the original proof and the definitions being used.
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