Excitation and detection of spin waves in organic-based ferrimagnet V[TCNE]_x (x ≈ 2)

Vanadium tetracyanoethylene, V[TCNE]_x (x ≈ 2), is an organic-based ferrimagnet with an above room-temperature magnetic order. Quantized spin waves can be generated in V[TCNE]_x which can be utilized for next-generation magnonic devices. Coherent spin-wave modes in V[TCNE]_x can be excited with microwave irradiation and detected using inverse spin hall effect in adjacent Platinum layer [1]. A variety of magnons modes are shown to exhibit spin pumping capability [2]. Also, the ferromagnet resonance response of V[TCNE]_x  films exhibit Fano-type resonance with a continuum broadband absorption in the microwave range, which can be readily tuned by the microwave frequency [1].