亚稳超导颗粒无序悬浮体系中的抗磁相互作用
Diamagnetic Interactions in Disordered Suspensions of Metastable Superconducting Granules
摘要：
研究了当外加磁场从零缓慢增加时，无序悬浮液中过热I型超导颗粒（SSG）的转变序列的模拟。模拟考虑了抗磁相互作用和表面缺陷的存在。结果已获得的过渡序列和表面场分布覆盖了广泛的密度。这些结果与以前的分析微扰理论，它提供了定性信息的过渡和表面磁场在过渡期间，但与一系列的有效性显然限于极稀的样品。考虑到完整的反磁相互作用的球体之间的模拟似乎是一个很有前途的工具，在解释SSG实验中，在应用程序，如粒子探测器，并在一些基本的计算固态物理。
英文摘要：
The simulation of the transition sequence of superheated Type I superconducting granules (SSG) in disordered suspensions when an external magnetic field is slowly increased from zero has been studied. Simulation takes into account diamagnetic interactions and the presence of surface defects. Results have been obtained for the transition sequence and surface fields distribution covering a wide range of densities. These results are compared with previous analytical perturbative theory, which provides qualitative information on transitions and surface magnetic fields during transitions, but with a range of validity apparently limited to extremely dilute samples. Simulations taking into account the complete diamagnetic interactions between spheres appear to be a promising tool in interpreting SSG experiments, in applications such as particle detectors, and in some fundamental calculations of Solid State Physics.
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