| Microstructures in Strongly Interacting Dipolar Fluids |
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| 作者姓名： | 许晨 马余强 许伯铭 佟富强 |
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| 作者单位： | [1]NationalLaboratoryofSolidStateMicrostructures,NanjingUniversity,Naning210093／／DepartmentofPhysics,SuzhouUniversity,Suzhou215006 [2]NationalLaboratoryofSolidStateMicrostructures,NanjingUniversity,Naning210093 [3]DepartmentofPhysics,SuzhouUniversity,Suzhou215006 |
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| 摘 要： | The formation of ring- and chain-like microstructures in ferrofluids consisting of interacting magnetic particles coated by a surfactant layer is studied by Monte Carlo simulations. For thin coating layers, it is found that ring- and chain-like structures coexist. The ring-like structures are suppressed by thicker coating layers. These observations are in agreement with recent experiments. Also, the ring-like structures are formed by dynamical aggregation of particles, instead of bending of linear chains. The latter process is forbidden bv a substantial energy barrier.
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| 关 键 词： | 微观结构 偶极流体 铁磁流体 磁粒子 覆层 |
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