Transport Signatures from Novel Quantum Magnets

Quantum magnetism is an emerging field where the energy is transported by means of spinons and magnons, in addition to phonons. However, these systems are often Mott insulators precluding conventional electric transport measurements on low-dimensional films. We describe our latest efforts to perform transport measurements, including thermal transport measurements, on these quantum magnets. We describe our calibration and new geometries we attempt for such a measurement and present results on a quantum spin liquid candidate material. We discuss the effects of interfaces, geometry, and the choice of substrates and materials for such a measurement.