Low loss spin wave resonances in organic-based ferrimagnet vanadium tetracyanoethylene thin films

Abstract

We experimentally demonstrate high quality factor spin wave resonances in an encapsulated thin film of the organic-based ferrimagnet vanadium tetracyanoethylene (V[TCNE]${}_{\text{x 2}}$) coated on an a-plane sapphire substrate by low temperature chemical vapor deposition. The thickness standing wave modes are observed in a broad frequency range (1 GHz ~ 5 GHz) with high quality factor exceeding 3,200 in ambient air at room temperature, rivaling those of inorganic magnetic materials. The exchange constant of V[TCNE]${}_{\text{x 2}}$, a crucial material parameter for future study and device design of the V[TCNE]${}_{\text{x 2}}$, is extracted from the measurement with a value of $(4.61\pm 0.35)\times 10^{-16}{\mathrm{m}}^2$. Our result establishes the feasibility of using organic-based materials for building hybrid magnonic devices and circuits.

arXiv comment12 pages, 3 figures

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Cited by in corpus (12)

• Cavity Magnonics
• Quantum entanglement between two magnon modes via Kerr nonlinearity
• Magnon-photon strong coupling for tunable microwave circulators
• A Magnon Scattering Platform
• Predicted strong coupling of solid-state spins via a single magnon mode
• Patterned growth of crystalline Y${}_3$Fe${}_5$O${}_{12}$ nanostructures with engineered magnetic shape anisotropy
• Nonlinear Spin Currents
• Optically Detected Ferromagnetic Resonance in Metallic Ferromagnets via Nitrogen Vacancy Centers in Diamond
• Low-Damping Ferromagnetic Resonance in Electron-Beam Patterned, High-$Q$ Vanadium Tetracyanoethylene Magnon Cavities
• Exploring a quantum-information-relevant magnonic material: Ultralow damping at low temperature in the organic ferrimagnet V[TCNE]x
• Spin-wave Confinement and Coupling in Organic-Based Magnetic Nanostructures
• Raman Spectroscopy and Aging of the Low-Loss Ferrimagnet Vanadium Tetracyanoethylene