Nanoscale magnetic domains in polycrystalline Mn3Sn films imaged by a scanning single-spin magnetometer

Abstract

Noncollinear antiferromagnets with novel magnetic orders, vanishingly small net magnetization and exotic spin related properties hold enormous promise for developing next-generation, transformative spintronic applications. A major ongoing research focus of this community is to explore, control, and harness unconventional magnetic phases of this emergent material system to deliver state-of-the-art functionalities for modern microelectronics. Here we report direct imaging of magnetic domains of polycrystalline Mn3Sn films, a prototypical noncollinear antiferromagnet, using nitrogen-vacancy-based single-spin scanning microscopy. Nanoscale evolution of local stray field patterns of Mn3Sn samples are systematically investigated in response to external driving forces, revealing the characteristic "heterogeneous" magnetic switching behaviors in polycrystalline textured Mn3Sn films. Our results contribute to a comprehensive understanding of inhomogeneous magnetic orders of noncollinear antiferromagnets, highlighting the potential of nitrogen-vacancy centers to study microscopic spin properties of a broad range of emergent condensed matter systems.

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Cited by in corpus (8)

• Observation of cluster magnetic octupole domains in the antiferromagnetic Weyl semimetal Mn3Sn nanowire
• Coherent Driving of a Single Nitrogen Vacancy Center by a Resonant Magnetic Tunnel Junction
• Current-induced quasiparticle magnetic multipole moments
• Nanoscale quantum imaging of field-free deterministic switching of a chiral antiferromagnet
• Micromagnetic simulations for magnetic multipoles
• Quantum Imaging of Ferromagnetic van der Waals Magnetic Domain Structures at Ambient Conditions
• Sub-tesla on-chip nanomagnetic metamaterial platform for angle-resolved photoemission spectroscopy
• Direct imaging and control of Berry curvature in noncollinear antiferromagnetic single-crystal thin films