Variable resistance at the boundary between semimetal and excitonic insulator
Rontani, Massimo · Sham, L. J.
Original · EN
We solve the two-band model for the transport across a junction between a semimetal and an excitonic insulator. We analyze the current in terms of two competing terms associated with neutral excitons and charged carriers, respectively. We find a high value for the interface resistance, extremely sensitive to the junction transparency. We explore favorable systems for experimental confirmation.
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