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Extreme Nonreciprocal Superconducting Diode Effect in Valley-Polarized Systems

A microscopic mechanism in which an applied supercurrent redistributes electrons between two valleys and, through interaction-induced valley splitting, remodulates the depairing current into the actual critical current - producing an extreme nonreciprocity where both critical currents share a sign (100% diode efficiency) and a current-induced re-entrant superconductivity with two separate superconducting current intervals.

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Current-induced re-entrant superconductivity and extreme nonreciprocal superconducting diode eﬀect

The superconducting diode effect (SDE) is the nonreciprocity of a superconductor's critical current: the maximum supercurrent it can carry differs in the two directions, and the diode efficiency meas…