Parametric instability of homogeneous precession of spin in the superfluid 3He-B

Details Parametric instability of homogeneous precession of spin in the superfluid 3He-B Parametric instability of homogeneous precession of spin in the superfluid 3He-B

2006-06-02

arxiv.org/abs/cond-mat/0606054v1

Pis'ma v ZhETF 83, 479-484, (2006)

Physics

Condensed Matter

Superconductivity

12 pages, 1 figure, Russian version is published in Pis'ma v ZhETF

Scientific paper

Stability of homogeneous precession of spin due to parametric excitation of spin waves is considered as the explanation of the "catastrophic relaxation", that is observed in the superfluid 3He-B. It is shown, that at sufficiently low temperatures homogeneous precession of spin becomes unstable (Suhl instability). At zero temperature increments of growth for all spin wave modes are found. Estimation of the temperature of transition to the unstable state is made.

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