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2025-06-04 13:54:12

This https://arxiv.org/abs/2505.08733 has been replaced.
initial toot: https://mastoxiv.page/@a…

Absolute measurement of the exchange interaction in an InSb quantum well using Landau-level tunnelling spectroscopy
We studied InSb quantum well devices using Landau level tunneling spectroscopy through a three-terminal differential conductance technique. This method is similar to filled state scanning tunneling microscopy but uses a stationary contact instead of a mobile tip to analyze the two-dimensional electron system. Applying magnetic fields up to 15 T, we identified clear peaks in the differential current-voltage profiles, indicative of Landau level formation. By examining deviations from the expected…