Evidence of half-metallic-2DHG at BiFeO₃ based heterointerfaces

Abstract The electronic properties of tetragonal BiFeO 3 based hetero-structures, along with the phase SrTiO and PbTiO in (001) direction, is investigated two types interfaces. In case /SrTiO hetero-structure, (FeO 2 ) − /(SrO) 0 , (BiO) + /(TiO interfaces are respectively. For /PbTiO /(PbO) / (TiO studied. A tiny amount half-metallicity has been found interface while behaves as metallic heterostructure. However, interestingly, turns out to be a prominent half-metal hole-type charge carriers, exhibits two-dimensional electron gas (001).