Manipulating ferroic orders in BiFeO₃ using BiFeO₃/BiFe_0.5Co_0.5O₃ multilayer heterostructures

           Multiferroic materials have recently attracted wide interest due to the coexistence of multiple order parameters, typically ferroelectricity and magnetism, coupled to each other and are promising materials for spintronics, memory, and sensing devices. BiFeO3 (BFO) is one of the most important magnetoelectric multiferroic materials with unique high ferroelectric Curie (T_C = 1083 K) and antiferromagnetic Neel (T_N = 643K) temperatures.¹ In this work, we will explore the tuneability of the ferroic orders in BFO epitaxial thin films using heterostructures with Fe-site Co-substituted BFO. Specifically, we will report on the growth of {[BiFeO₃]_{4 UC} + [BiFe_0.5Co_0.5O₃]_{n UC}; where UC = unit cells} multilayer structures grown using pulsed laser deposition and examine the effect of increasing BFCO layer thickness (n) in the multiferroicity of BFO.