Properties of Crystalline Silicon

(Edited by M.R. Brozel)
H.-M. Kagaya and T. Soma (updated by M.R. Brozel)
April 1998
Data relevant to the specific heat at constant pressure (c p) of Si are given in [1 6]. Recommended data are summarised in TABLE 1 together with the Debye temperature ( ?).
| T (K) | c p (J g -1 K -1) | ? (K) |
|---|---|---|
| 5 | 0.340 10 -4 | 641 |
| 10 | 0.276 10 -3 | 631 |
| 20 | 0.341 10 -2 | 545 |
| 40 | 0.441 10 -1 | 463 |
| 60 | 0.115 | 492 |
| 80 | 0.188 | 535 |
| 100 | 0.259 | 572 |
| 120 | 0.328 | 599 |
| 140 | 0.395 | 617 |
| 160 | 0.456 | 629 |
| 180 | 0.511 | 637 |
| 200 | 0.557 | 643 |
| 220 | 0.597 | 647 |
| 240 | 0.632 | 648 |
| 260 | 0.665 | 647 |
| 280 | 0.691 | 645 |
| 300 | 0.713 | 643 |
| 400 | 0.785 | 650 |
| 500 | 0.832 | 653 |
| 600 | 0.849 | 654 |
| 700 | 0.866 | |
| 800 | 0.883 | 655 |
| 900 | 0.899 | |
| 1000 | 0.916 | 656 |
| 1100 | 0.933 | |
| 1200 | 0.950 | |
| 1300 | 0.967 | |
| 1400 | 0.983 | |
| 1500 | 1.000 | |
| 1600 | 1.017 |
Notes (O: observed, Th: theoretical and E: extrapolated)
Extrapolation of the specific heat to the melting point (1687 K) gives 1.032 J g -1 K -1 (E).
The Debye temperature extrapolated to T = 0 K gives 645 K and reaches about 657 K at the melting point (E).
The Debye temperature has a minimum value of 463 K at T = 39 K...