Long-lived induction signal in superfluid 3He-B
Borovik-Romanov A. S. , Bun'kov Yu. M., Dmitriev V. V., Mukharskii Yu. M.
The frequency of the "long-lived" induction signal in 3He-i? depends on the time, and the rate of change of this frequency increases with increasing field gradient. Experiments confirm Fomin's theoretical explanation of this phenomenon, according to which a 3He-Z? sample in which a uniform magnetization precession is excited breaks up into two phases. In one, the magnetization is parallel to the field and does not precess; in the other, the magnetization precesses with a deflection angle of approximately 104°.
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![](/ps/1257/article_19014_800_head.png "The frequency of the "long-lived" induction signal in <sup>3</sup>He-i? depends on the time, and the rate of change of this frequency increases with increasing field gradient. Experiments confirm Fomin's theoretical explanation of this phenomenon, according to which a <sup>3</sup>He-Z? sample in which a uniform magnetization precession is excited breaks up into two phases. In one, the magnetization is parallel to the field and does not precess; in the other, the magnetization precesses with a deflection angle of approximately 104°.")