abstract

• The three-dimensional motion of single colloidal particles close to a plane wall is measured by optical microscopy. In accordance with classical theoretical predictions, we find an asymmetric motion of the particles in the directions parallel and perpendicular to the wall. We also find that, close to the wall, the distribution functions of perpendicular steps are asymmetric, being shorter toward the wall and longer away from it. © 2007 The American Physical Society.

authors

• Arauz Lara Bernardo José Luis
• Carbajal-Tinoco M.D.
• Lopez-Fernandez R.

publication date

• 2007-01-01

published in

• Physical Review Letters  Journal

keywords

• Colloids; Diffusion; Distribution functions; Optical microscopy; Asymmetric motion; Classical theoretical predictions; Colloidal diffusion; Single colloidal particles; Elementary particles

Digital Object Identifier (DOI)

• 10.1103/PhysRevLett.99.138303

start page

end page

volume

• 99

issue

• 13