Determination of exchange energy (IMAGE)

Swiss Nanoscience Institute, University of Basel

Determination of exchange energy

Caption

The two-dimensional semiconductor material molybdenum disulfide is filled with electrons (red spheres). The electron-electron interaction causes the spins of all electrons (red arrows) to align in the same direction. The exchange energy required to flip a single electron spin in the ferromagnetic state can be determined by the separation between two specific spectral lines.

Credit

N. Leisgang, Harvard University, formerly Department of Physics, University of Basel/Scixel

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