Quantum sensing and imaging of spin-orbit-torque-driven spin dynamics in noncollinear antiferromagnet Mn3Sn

Abstract

Novel noncollinear antiferromagnets with spontaneous time-reversal symmetry breaking, nontrivial band topology, and unconventional transport properties have received immense research interest over the past decade due to their rich physics and enormous promise in technological applications. One of the central focuses in this emerging field is exploring the relationship between the microscopic magnetic structure and exotic material properties. Here, the nanoscale imaging of both spin-orbit-torque-induced deterministic magnetic switching and chiral spin rotation in noncollinear antiferromagnet Mn3Sn films using nitrogen-vacancy (NV) centers is reported. Direct evidence of the off-resonance dipole-dipole coupling between the spin dynamics in Mn3Sn and proximate NV centers is also demonstrated with NV relaxometry measurements. These results demonstrate the unique capabilities of NV centers in accessing the local information of the magnetic order and dynamics in these emergent quantum materials and suggest new opportunities for investigating the interplay between topology and magnetism in a broad range of topological magnets.

arXiv comment16 pages, 5 figures

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Cited by in corpus (25)

• Single-molecule Scale Magnetic Resonance Spectroscopy using Nitrogen-Vacancy Centers in Diamond
• Magnetization switching in polycrystalline Mn3Sn thin film induced by self-generated spin-polarized current
• Time-dependent multistate switching of topological antiferromagnetic order in Mn${}_3$Sn
• Nanoscale imaging of antiferromagnetic domains in epitaxial films of Cr2O3 via scanning diamond magnetic probe microscopy
• Nanoscale magnetic domains in polycrystalline Mn3Sn films imaged by a scanning single-spin magnetometer
• Nitrogen-vacancy magnetometry of CrSBr by diamond membrane transfer
• Imaging current control of magnetization in Fe${}_3$GeTe${}_2$ with a widefield nitrogen-vacancy microscope
• Order parameter dynamics in Mn${}_3$Sn driven by DC and pulsed spin-orbit torques
• Noncollinear Antiferromagnetic Spintronics
• Observation of cluster magnetic octupole domains in the antiferromagnetic Weyl semimetal Mn3Sn nanowire
• Quantum Sensing of Antiferromagnetic Magnon Two-Mode Squeezed Vacuum
• Solid-state platform for cooperative quantum dynamics driven by correlated emission
• Impact of strain on the SOT-driven dynamics of thin film Mn${}_3$Sn
• Imaging Local Effects of Voltage and Boron Doping on Spin Reversal in Antiferromagnetic Magnetoelectric Cr2O3 Thin Films and Devices
• Current-induced quasiparticle magnetic multipole moments
• Electrically Tunable Picosecond-scale Octupole Fluctuations in Chiral Antiferromagnets
• Interfacial Dzyaloshinskii-Moriya interaction in nonmagnetic/noncollinear-antiferromagnetic bilayers
• Operator Formalism for Noncollinear Functionals in Multicollinear Approach
• Nanoscale quantum imaging of field-free deterministic switching of a chiral antiferromagnet
• Wideband covariance magnetometry below the diffraction limit
• Sub-tesla on-chip nanomagnetic metamaterial platform for angle-resolved photoemission spectroscopy
• Strain-induced manipulation of non-collinear antiferromagnets
• Squeezing and quantum control of antiferromagnetic magnon pseudospin
• A method for robust spin relaxometry in the presence of imperfect state preparation
• Nanodiamond Sensing of Stray Fields during Domain Reversal