Electrical conductivity of uniaxial-deformed monocrystals Tli-_xAg_xInSe2(0 < X < 0,03)

Abstract

We have studied the effect of uniaxial compression (stretching) deformation on electrical conductivity along the crystallographic axis [00l] of monocrystals TlInSe2 and derivant solid solutions. It has been found that substitution of Tl atoms with Ag atoms in crystals of solid solutions based on TlInSe2 leads to a shift of the energy of indirect transitions to the long-wave zone. The obtained results have been compared to both theoretical calculations of the zone structure of TlInSe2 crystals and the multi-valley model.