Antiferromagentic resonance detected by DC voltages in MnF${}_2$/Pt bilayers

Abstract

We performed coplanar waveguide-based broadband ferromagnetic resonance experiments on the antiferromagnetic insulator MnF${}_2$, while simultaneously recording the DC voltage arising in a thin platinum film deposited onto the MnF${}_2$. The antiferromagnetic resonance is clearly reflected in both the transmission through the waveguide as well as the DC voltage in the Pt strip. The DC voltage remains largely unaffected by field reversal and thus presumably stems from microwave rectification and/or heating effects. However, we identify a small magnetic field orientation dependent contribution, compatible with antiferromagnetic spin pumping theory.

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• Switching magnon chirality in artificial antiferromagnet
• Enhanced Spin Conductance of a Thin-Film Insulating Antiferromagnet
• Electrically tunable detector of THz-frequency signals based on an antiferromagnet
• Mode-Dependent Damping in Metallic Antiferromagnets Due to Inter-Sublattice Spin Pumping
• Superconductivity at metal-antiferromagnetic insulator interfaces
• Non-Collinear Spin Current for Switching of Chiral Magnetic Textures
• Magnon-Mediated Indirect Exciton Condensation through Antiferromagnetic Insulators