Hall-Bulk photovoltaic effect in BiFeO3/SrTiO3 at low temperatures

Abstract

The bulk photovoltaic effect (BPVE) is not bound to the fundamental limitations of conventional electronic charge transport in photovoltaic materials. By investigating the response of the BPVE to a magnetic field in an oxide perovskite system (BiFeO3/SrTiO3) they show that the BPVE exhibits Hall effect behaviour and is ballistic in nature at low temperatures.