Semiconductor surface Debye temperatur

Phonon surface bands of some insulators and semiconductors are given in Figs. 5.2-56-5.2-58. Surface phonon energies of alkali halide crytals are summarized in Table 5.2-23. Since insulators and semiconductors have in general more than one atom per unit cell, they display both acoustical and optical branches. Surface Debye temperatures of some semiconductors are given in Table 5.2-22. 

Table 5.2-22 Surface Debye temperatures of semiconductors. References to the original articles are given in [2.4,6]...

The Debye characteristic temperature of isotropic bodies is directly associated with the bulk modulus and therefore with all the other properties of matter dependent, to a certain degree, on the atomization energy, the surface energy u, the elasticity moduli, the expansion coefficients, the width of the forbidden band in semiconductors, etc. 

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