Critical tunneling currents in quantum Hall superfluids: Pseudospin-transfer torque theory

@article{Su2010CriticalTC,
  title={Critical tunneling currents in quantum Hall superfluids: Pseudospin-transfer torque theory},
  author={J. Su and A. MacDonald},
  journal={Physical Review B},
  year={2010},
  volume={81},
  pages={184523}
}
At total filling factor $\nu=1$ quantum Hall bilayers can have an ordered ground state with spontaneous interlayer phase coherence. The ordered state is signaled experimentally by dramatically enhanced interlayer tunnel conductances at low bias voltages; at larger bias voltages inter-layer currents are similar to those of the disordered state. We associate this change in behavior with the existence of a critical current beyond which static inter-layer phase differences cannot be maintained, and… Expand
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