NMR measurement of the magnetic field correlation function in porous media.
NMR measurement of the magnetic field correlation function in porous media.
复制标题
多孔介质中磁场相关函数的核磁共振测量。
DOI：
10.1103/physrevlett.100.025501
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发表时间：
2008
影响因子：
8.6
通讯作者：
Song,Yi-Qiao
中科院分区：
文献类型：
--
作者：
Cho,H;Song,Yi-Qiao
结构因子提供了多孔和颗粒状材料的基本特征，因为它是通过X射线和中子散射测量固体晶体的关键。在这里，我们证明了颗粒和多孔介质的结构因子可以用非均匀内部磁场的对关联函数来近似，非均匀内部磁场的对关联函数是由孔隙填充液体和固体基质之间的磁化率差异引起的。对内部领域的深入了解可能有助于进一步发展研究多孔和颗粒介质的技术。
The structure factor provides a fundamental characterization of porous and granular materials as it is the key for solid crystals via measurements of x-ray and neutron scattering. Here, we demonstrate that the structure factor of the granular and porous media can be approximated by the pair correlation function of the inhomogeneous internal magnetic field, which arises from the susceptibility difference between the pore filling liquid and the solid matrix. In-depth understanding of the internal field is likely to contribute to further development of techniques to study porous and granular media.