Stabilization of Homogeneously Precessing Domains by Large Magnetic Fields in Superfluid H 3 e − B
摘要：
The velocity and attenuation of ultrasound passing through porous impurity-helium solids immersed in liquid 4He have been measured in the temperature range 1.1–2.3 K. These solids were formed by injecting a mixture of impurity (e.g. D2, Ne, N2 or Kr) and helium gases into superfluid 4He. The sound signal seemed to propagate mainly in the helium contained in the pores, rather than through the...
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DOI：
10.1103/PhysRevLett.85.1032
被引量：
年份：
2000
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