Static and dynamic magnetic properties of 3He confined by fluorocarbon microspheres.
Static and dynamic magnetic properties of 3He confined by fluorocarbon microspheres.
复制标题
氟碳微球约束的 3He 的静态和动态磁性能。
DOI：
10.1103/physrevb.36.6811
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
M. Chapellier
中科院分区：
文献类型：
--
作者：
A. Schuhl;S. Maegawa;M. Meisel;M. Chapellier
The magnetic properties of liquid He 3 confined by fluorocarbon microspheres have been studied by NMR in a large range of magnetic fields (0.03–3 T) and between 10 and 800 mK. The dynamics of the liquid magnetization are driven by the relaxation mechanisms of the adsorbed solid He 3 film. This relaxation is produced by the He 3 motion induced by quantum exchange. The spectral density of this motion has been deduced from measurements of relaxation times in the liquid. The quantum exchange in the solid layer also allows a magnetization transfer between the He 3 and substrate F 19 spins. Magnetic susceptibility measurements have also been done as function of pressure and temperature. A growth of adsorbed solid is observed as the liquid pressure increases. We also demonstrated the possibility of producing enhanced liquid He 3 magnetization by nuclear dynamic polarization.
