Terahertz Spin-to-Charge Conversion in Strontium Iridate-Based Magnetic Heterostructures.

Oxide interfaces have enormous potential for future electronics with many applications, such as large spin Hall conductance, phase transitions, topological states, and superconductivity. However, previous investigations have predominantly focused on gigahertz frequencies; whilst the possibilities to fabricate devices operational at terahertz frequencies are demonstrated. A model solution is proposed employing 5d rare-earth, strontium iridate (SrIrO) heterostructure with cobalt (Co) ultrathin layers.