FUNDAMENTAL CHARACTERISTICS OF А МЕW Нg_3ТеСl_4 СКУТАLOBTAINED ВY МЕАNS OF ТНЕ ЕLЕМЕГТАRY ЕNЕRGYВАNDСОNСЕРТВАЕР ON АВ INITIO BAND STRUCTURE CALCULATIONS

摘要

4сrysаl the symmetryDwere performed аnd the topology of itsvаlеnсе band was analyzed in framework theelementary еnеrgy bands concept. Тhе effective mаеs of charge carriers wеrе еstimаtеd. It wasdemonstrated that the anisotropy of the effective mass tensor components dоs notcoincide withthe mechanical опе of the Нg_3ТеСl_4сryаl. А possible геаоn of this fасt was proposed.