Abstract
Samples of both -type and -type containing from 3× to 5× extrinsic carriers were prepared and the phase diagram in the region about has been clarified. The Hall mobility parallel to the cleavage planes varies as for holes and for electrons. Room temperature values are and . The energy gap is electron volts. From thermal conductivity measurements over the temperature range from 77°K to 380°K the lattice conductivity was found to be watt- . The sharp rise in the thermal conductivity in the vicinity of room temperature was attributed to transport of energy by ambipolar diffusion of electrons and holes.
- Received 15 August 1957
DOI:https://doi.org/10.1103/PhysRev.108.1164
©1957 American Physical Society