Dipole-quadrupole interaction
Trajectories of the dipolar colloidalparticle after it was released from the optical trap near the quadrupolar colloidal particle, which is placed at the origin. Blue lines show the attractive trajectories, red lines show repulsive trajectories, and black dashed lines are calculated by using an electrostatic ansatz. |
U. Ognysta, A. Nych, V. Nazarenko, I. Muševič, M. Škarabot, M. Ravnik, S. Žumer, I. Poberaj, D. Babič, 2D Interactions and Binary Crystals of Dipolar and Quadrupolar Nematic Colloids, Phys.Rev.Letters, 100, 217803 (2008). |