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VOLUME 57 (1993) | ISSUE 11 | PAGE 699
Hall tunneling of vortices in high-temperature superconductors
Quantum tunneling of vortices in very clean type-II superconductors is shown to be governed by the Hall term in the equation of motion. An effective action determining the tunneling probability is calculated. It is argued that high-temperature superconductors may belong to a class of very clean materials, and that they may have Hall tunneling at low temperatures.