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

Publication date2011-01-24
First online date2011-01-24
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 $\frac{h}{e} \chi_m$ where $\chi_m$ is the diamagnetic susceptibility of the device. We discuss possible experimental realizations of the predicted unconventional flux quantization.

eng
Keywords
  • Flux: magnetic
  • Flux: quantization
  • Superfluid
  • Coherence
  • Susceptibility
  • Condensation: Bose-Einstein
  • Landau-Ginzburg model
  • Proposed experiment
Affiliation Not a UNIGE publication
Research group
Citation (ISO format)
RADEMAKER, Louk, ZAANEN, Jan, HILGENKAMP, Hans. Prediction of the quantization of magnetic flux in double-layer exciton superfluids. In: Physical review. B, Condensed matter and materials physics, 2011, vol. 83, n° 1, p. 012504. doi: 10.1103/PhysRevB.83.012504
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Article (Published version)
accessLevelPublic
Identifiers
ISSN of the journal1098-0121
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