准平面核软化胶体凝聚相的观察
Observation of condensed phases of quasi-planar core-softened colloids
摘要：
我们实验研究了两维排斥核软化球的凝聚相。超顺磁性微球在横向磁场作用下产生偶极对排斥，通过适当调节微球的厚度可以使其变软。我们扫描一个广泛的密度范围，我们实现了大部分的理论预测相的核心软化颗粒，包括膨胀和密集的六边形，正方形，链状，条纹/蜂窝状，和蜂窝状相系统。通过蒙特卡罗模拟进一步了解它们的结构。
英文摘要：
We experimentally study the condensed phases of repelling core-softened spheres in two dimensions. The dipolar pair repulsion between superparamagnetic spheres trapped in a thin cell is induced by a transverse magnetic field and softened by suitably adjusting the cell thickness. We scan a broad density range and we materialize a large part of the theoretically predicted phases in systems of core-softened particles, including expanded and close-packed hexagonal, square, chain-like, stripe/labyrinthine, and honeycomb phase. Further insight into their structure is provided by Monte Carlo simulations.
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