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Pulse Inverse Spin-Hall Effect in Organic Semiconductors

Objective: Estimate spin-orbit coupling in in a wide variety of organic semiconductors. 

Approach: Use pulsed microwave excitation in ferromagnets to generate spin-current in organic semiconductor thin films with weak spin orbit coupling, which induces a measurable voltage.

Results and Significance: The ability to pump large pure spin currents into most classes of organic semiconductors offers a robust methodology for investigating spin-transport properties, and a simple method to probe the strength of the spin-orbit coupling in these devices.