Kinetic control of surfaces drives bulk magnetic properties
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Kinetic control of surfaces drives bulk magnetic properties

Scientific Achievement: Polarized neutron reflectometry revealed that the surface oxidation of the intrinsic magnetic topological insulator MnBi2Te4 is kinetically limited to the topmost layer, determining the bulk magnetism.

Significance and Impact: A precise understanding of the surface magnetic states is critical to understand emergence of quantized edge states, which is crucial for applications in next-generation microelectronics.

DOI: 10.1002/adfm.202202234


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