Magnetic Topological Insulator Schematic (IMAGE)

DOE/Brookhaven National Laboratory

Magnetic Topological Insulator Schematic

Caption

Schematic diagram showing both the magnetism and the conductive behavior on the surface of MnBi2Te4. The magnetism points uniformly upward, as shown by the red arrows, and the surface electrons, represented by the hourglass structures, are conductive because the top and bottom halves touch at the vertex with no 'gap' in the middle (see text). Both of these features are not expected to occur simultaneously, illustrating the need to further understand the material's fundamental properties.

Credit

Brookhaven National Laboratory

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