Question 4 a) FIGURE 3 show the dispersion curve diagram of solids. .... Rndeced we e FIGURE 3 (a) Crystal A and (b) Crystal B ) Which one is monoatomic? Name one example of it. i) Which one is Diatomic? Name one example of it. b) For 1-D diatomic crystal lattice, the dispersion curve (@ versus k) has two branches, the optical phonon branch and the acoustical phonon branch. state the importance of the dispersion curve? c) For optical phonon waves, what happen when - K=0 - K=
Question 4 a) FIGURE 3 show the dispersion curve diagram of solids. .... Rndeced we e FIGURE 3 (a) Crystal A and (b) Crystal B ) Which one is monoatomic? Name one example of it. i) Which one is Diatomic? Name one example of it. b) For 1-D diatomic crystal lattice, the dispersion curve (@ versus k) has two branches, the optical phonon branch and the acoustical phonon branch. state the importance of the dispersion curve? c) For optical phonon waves, what happen when - K=0 - K=
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Please help with Question 4 a,b, and c
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Question 4
a) FIGURE 3 show the dispersion curve diagram of solids.
FIGURE 3 (a) Crystal A and (b) Crystal B
i) Which one is monoatomic? Name one example of it.
ii) Which one is Diatomic? Name one example of it.
b) For 1-D diatomic crystal lattice, the dispersion curve (w versus k) has two branches, the
optical phonon branch and the acoustical phonon branch. state the
importance of the dispersion curve?
c) For optical phonon waves, what happen when
- K=0
- K="
2a
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