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Peculiarities of the magneto-optical response in dispersions of anisometric pigment nano-particles

机译:磁力纳米粒子分散中磁光响应的特性

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We demonstrate an unusually strong magneto-optical response of elongated plate-shaped pigment particles in magnetic fields ranging from 0 to 25 T. In a weak field, the particles align perpendicular to the field and the dispersions exhibit the Cotton–Mouton effect. In a strong magnetic field, the magneto-optical behaviour is nonlinear and cannot be explained by a simple model of non-interacting diamagnetic rods in a thermal equilibrium. We also demonstrate that the addition of a small amount of magnetic particles results in a complex magneto-optical response, where the particles align parallel to a weak magnetic field and perpendicular to a strong one.
机译:我们展示了在磁场范围为0至25t的磁场中的细长板状颜料颗粒的异常强的磁光响应。在弱场中,垂直于该磁场对准颗粒,并且分散体表现出棉质 - Mouton效应。在强磁场中,磁光行为是非线性的,并且不能通过热平衡中的非相互作用的抗磁杆的简单模型来解释。我们还证明,添加少量磁性颗粒导致复杂的磁光响应,其中颗粒平行于弱磁场并垂直于强的磁场。

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