Surface fluctuations of normal and superfluid 3He probed by Wigner solid dynamics.
Surface fluctuations of normal and superfluid 3He probed by Wigner solid dynamics.
复制标题
维格纳固体动力学探测正常和超流体 3He 的表面波动。
DOI：
--
复制
发表时间：
2001
影响因子：
8.6
通讯作者：
F. Williams
中科院分区：
文献类型：
--
作者：
O. Kirichek;M. Saitoh;K. Kono;F. Williams
通过对漂浮在氦表面上的电子晶体（维格纳固体）的低波矢量横向磁声子模式的线宽的影响，测量了正常和超流体 3He 表面波动引起的电子散射。弛豫率在 70 mK 以下变得异常低，并在比预期值低约 3 倍的水平处达到稳定状态，然后在超流体转变处进一步下降。 4He 上没有这种异常行为，表明这种效应是液态 3He 所特有的。
Electron scattering from surface fluctuations on normal and superfluid 3He has been measured by its effect on the linewidth of the low-wave-vector transverse magnetophonon mode of the electron crystal (the Wigner solid) floating on the helium surface. The relaxation rate becomes anomalously low below 70 mK, and reaches a plateau at about 3 times less than its expected value before dropping further at the superfluid transition. The absence of such anomalous behavior on 4He suggests that the effect is specific to liquid 3He.