hide
Free keywords:
-
Abstract:
We have investigated the structural stability of the ternary Zintl phase
LiInGe up to 35 GPa by means of angle dispersive X-ray powder
diffraction. At ambient conditions LiInGe crystallizes in a cubic
face-centred structure consisting of a polytetrahedral arrangement of In
and Ge atoms. The compound undergoes a reversible phase transition to an
X-ray amorphous high pressure modification between 20 and 30 GPa. We
have determined the equation of state for the low pressure phase and the
result is discussed with respect to the related binary NaTl- and
zincblende-type compounds. In order to investigate the electronic
properties of LiInGe we have performed LMTO band structure calculations.
