title: A simple technique to measure the magnetic susceptibility of liquids.
abstract: A novel technique for measuring the magnetic susceptibility of liquids with modest applied magnetic fields (order of 0.25 T) is presented. The deformation of the liquid surface by a magnetic field is determined by a laser bounce or optical lever technique. The energy balance between the magnetic energy and the gravitational potential of the diamagnetic or paramagnetic liquid interaction is used to determine the susceptibility. The energy due to the surface tension energy is about 10% of the gravitational energy and can be neglected for fast measurements.
authors.affiliation: School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA.
authors.forename: Zijun
authors.initials: Z
authors.lastname: Chen
authors.forename: Joshua
authors.initials: J
authors.lastname: Ellis
authors.forename: E Dan
authors.initials: ED
authors.lastname: Dahlberg