A scannable unilateral permanent magnet system for the EPR MOUSE

Abstract

A prototype scannable unilateral permanent (SUPER) magnet for use with the electron paramagnetic resonance (EPR) mobile universal surface explorer (MOUSE) is described. The unilateral magnetic field is scannable from -94 to 94 mT by changing the relative angles of two fixed position ring magnets. The angular dependence of the modeled and measured magnetic fields are in agreement. The SUPER magnet is demonstrated on both the narrow spectral line sample DPPH as well as the broad spectral line sample rhodochrosite using the EPR MOUSE.