The experimental study into temperature dependence of thermal conductivity of mercury selenide doped with iron and cobalt impurities has been carried out. It is found that in the HgSe:Fe crystals the phonon thermal conductivity component has an essential anomaly (a pronounced dip) in its temperature dependence near 15 K due to the impurities. On the basis of the suggested theoretical description
it is shown that this anomaly may be attributed to the behaviour of the contribution to thermal conductivity
from phonon–electron scattering in the
hybridized impurity states.
PACS: 61.72.Vv Doping and impurity implantation in III-V and II-VI semiconductors; PACS: 63.20.Kr Phonon-electron and phononphonon interactions; PACS: 72.15.Eb Electrical and thermal conduction in crystalline metals and alloys.
Key words: transition elements impurities, phonon thermal conductivity, resonance scattering, point defects.