Dresden 2009 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 20: Focus: Magnetic Soft Matter II
CPP 20.7: Talk
Wednesday, March 25, 2009, 11:45–12:00, ZEU 222
Shape Discrimination with Hexapole Dipole Interactions in Magic Angle Spinning Colloidal Magnetic Resonance. — Pietro Tierno1, Steffen Schreiber2, Walter Zimmermann2, and •Thomas Fischer2 — 1University of Barcelona — 2University of Bayreuth
We study the interactions between magnetically driven anisotropic and isotropic colloidal rotors interacting via induced magnetic dipolar and multipolar forces in a precessing magnetic field. Close to the magic precession angle dipole dipole interactions between the rotors can be tuned such that shape sensitive higher multipole moments allow to assemble originally spherical rotors into clusters of defined shape and size.