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Paper detail

Tunable signal velocity in the integer quantum Hall effect of tailored graphene

Topological properties in condensed matter physics are often claimed to be a fruitful resource for technical applications, but so far they only play a minor role in applications. Here we propose to put topological edge states to use in tailored graphene for Fermi velocity engineering. By tuning external control parameters such as gate voltages, the dispersions of the edge states regime are modified in a controllable way. This enables the realizations of devices such as tunable delay lines and interferometers with switchable delays.

preprint2019arXivOpen access
M. MalkiG. S. Uhrig
cond-mat.mes-hallcond-mat.otherphysics.app-ph
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M. MalkiG. S. Uhrig

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