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Updated: Aug 11, 2026

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
Published on: July 20, 2022
Novel tetradymite-based magnetic topological materials and interfaces
Vikas Saini1, Hang Chi1,2,3
1Department of Physics, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada.
Abstract:
Rich physical phenomena arise at novel magnetic topological surfaces and interfaces, which have become a highly pursued forefront for quantum science and technology. Major breakthroughs have been propelled by ever improving capabilities of realizing and manipulating, at the atomic level, unprecedented quantum behavior when emerging magnetic order, tunable spin-orbit coupling and topologically nontrivial states cooperate. In this review, we focus on interface-modulated magnetism in tetradymite-based magnetic topological insulators and semimetals. We highlight nontrivial spin textures and dynamics that are enabled by synergy of complex crystalline phases, competing orders, engineered defects and symmetry breaking. We envision deeper understanding of interfacially coupled magnetism and topology to further boost fundamental discoveries and technological breakthroughs.
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