Tunable flat bands and their signatures in electronic specific heat of an Aharonov-Bohm triangular quantum network
The study investigates how an Aharonov-Bohm flux changes flat bands in a triangular quantum network and detects these changes using electronic specific heat (ESH). It found that flat bands appear at specific fluxes, shift their energy positions depending on the flux, and produce a unique peak-dip-peak thermal signature in the ESH.