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arXiv · 1009.1793

Prediction of the quantization of magnetic flux in double layer exciton superfluids

Louk Rademaker·Jan Zaanen·Hans Hilgenkamp
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Abstract

Currently a way is lacking to detect unambiguously the possible phase coherence of an exciton condensate in an electron-hole double layer. Here we show that despite the fact that excitons are charge-neutral, the double layer exciton superfluid exhibits a diamagnetic response. In devices with specific circular geometry the magnetic flux threading between the layers must be quantized in units of $\frac{h}{e} χ_m$ where $χ_m$ is the diamagnetic susceptibility of the device. We discuss possible experimental realizations of the predicted unconventional flux quantization.

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Louk Rademaker, Jan Zaanen, Hans Hilgenkamp. 2010-09-09. Prediction of the quantization of magnetic flux in double layer exciton superfluids. https://doi.org/10.1103/physrevb.83.012504

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