  Magnetoelectric coupling has been a trending research topic in both organic
and inorganic materials and hybrids. The concept of controlling magnetism using
an electric field is particularly appealing in energy efficient applications.
In this spirit, ferroelectricity has been introduced to organic spin valves to
manipulate the magneto transport, where the spin transport through the
ferromagnet/organic spacer interfaces (spinterface) are under intensive study.
The ferroelectric materials in the organic spin valves provide a knob to vary
the interfacial energy alignment and the interfacial crystal structures, both
are critical for the spin transport. In this review, we first go over the basic
concepts of spin transport in organic spin valves. Then we introduce the recent
efforts of controlling magnetoresistance of organic spin valves using
ferroelectricity, where the ferroelectric material is either inserted as an
interfacial layer or used as a spacer material. The realization of the
ferroelectric control of magneto transport in organic spin valve, advances our
understanding in the spin transport through the ferromagnet/organic interface
and suggests more functionality of organic spintronic devices.
