Ea. Neifeld et al., SHUBNIKOV-DE-HAAS OSCILLATIONS IN FE-DOPED AND CO-DOPED HGSE UNDER PRESSURE, Physica status solidi. b, Basic research, 198(1), 1996, pp. 143-148
We have investigated the effect of pressure on Shubnikov-de Haas oscil
lations in the gapless semiconductor HgSe doped with Fe and Co. For Hg
Se(Fe) an increase of pressure results in a decrease of the electron c
oncentration in accordance with the Kane model for constant Fermi ener
gy. In contrast, in HgSe(Co) the electron concentration is independent
of pressure, i.e. the Fermi level is not pinned.