TRANSPORT PROPERTIES OF TlInS_2-TlDyS_2 SOLID SOLUTIONS

摘要

The transport properties of TlInS_2-TlDyS_2 solid solutions were studied. The solubility of TlDyS_2 in TlInS_2 was found to be 10 mol .The solid solutions crystallize in tetragonal symmetry with the TlInS_2 structure. As the TlDyS_2 content rises, the lattice parameters of the alloys increase and the band gap decreases almost linearly. Temperature-dependent conductivity and Hall data are used to elucidate the mechanisms of carrier scattering and conduction in TlDyS_2 and the TlInS_2-TlDyS_2 solid-solution system.