Phonon focusing patterns in cubic crystals Litian Wang Østfold University College Fall 2007.
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Phonon focusing patterns in cubic crystals Litian Wang Østfold University College Fall 2007
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Transcript of Phonon focusing patterns in cubic crystals Litian Wang Østfold University College Fall 2007.
Anisotropy
– Logitudinal waves (L)– Transverse waves (FT) – Slow transverse waves– Transverse waves (ST) – Fast transverse waves
The problema) Given elastic constants, can we determine
the dimension of the patterns analytically?b) Given a focusing pattern, can we determine
the elastic constants?
?
?