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A theory that predicts a spin-triplet, even-parity superconducting ground state in two-dimensional electron systems is reanalyzed in the light of recent experiments showing a possible insulator-to-conductor transition in such systems. It is shown that the observations are consistent with such an exotic superconductivity mechanism, and predictions are made for experiments that would further corroborate or refute this proposal.
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Belitz et al. (1998) studied this question.
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