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VOLUME 45 (1987) | ISSUE 2 | PAGE 98
Observation of phase slippage during the flow of a superfluid spin current in 3He-B
Experimental conditions have been arranged in superfluid 3He-i? such that a superfluid spin current transporting magnetization along a narrow channel is determined by the difference between the magnetization precession phases at the ends of the channel. A critical current at which a slippage of the precession phase occurs in the channel has been observed. The behavior of the superfluid spin current in the channel is analogous to that of a superconducting current in a weak link and to that of a superfluid current of 4He in a small hole.