Shape discrimination with hexapole-dipole interactions in magic angle spinning colloidal magnetic resonance.
We have studied the interactions between magnetically driven, DNA-linked anisotropic and isotropic colloidal rotors interacting via induced magnetic dipolar and multipolar forces. We show that a balance between magnetic dipole-dipole and dipole-hexapole interactions near the magic angle allows discrimination between spherical and anisotropic magnetic colloidal rotors.
Tierno
Pietro
P
Departament de Química Física, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain. ptierno@ub.edu
Schreiber
Steffen
S
Zimmermann
Walter
W
Fischer
Thomas M
TM