For numerical results, consider a plate of ZnO with 2h ¼ 2 μm, p 0 ¼ 2 Â 10
24 m
À3
and n 0 ¼ 1.2 Â 10
23 m
À3 . Typical dispersion curves found numerically are shown in
Fig. 2.12. The dispersion curves are complex because conduction is dissipative.
References
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circular PN junction between two piezoelectric semiconductors. Acta Mech. Solida Sin. 31,
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L169–L174 (2004)
5. J.S. Yang, An anti-plane crack in a piezoelectric semiconductor. Int. J. Fract. 136, L27–L32
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0
1
Im( )( m
-1 )
2
3
4
5
5
4
Re( )( m
-1 )
3
2
1
0
15
5
0
20
10
(10 9
rad/s)
B
C
A
D
E
F
Fig. 2.12 Dispersion
curves of antiplane waves
References
29