The Thermal Materials Laboratory is engaged primarily in the experimental investigation of electron, phonon, and magnon transport properties, particularly under the influence of temperature gradients. The materials studied are narrow-gap semiconductors (primarily InSb, PbTe, and BiSb alloys), semimetals (primarily bismuth and graphite) and their nanostructures, and magnetic metals and insulators. Researchers design, synthesize, and test materials for thermoelectric applications, including power generation through solar-thermal, waste-heat recovery (automotive, domestic, commercial, etc.), and other solid-state power generation, as well as Peltier cooling. New, spin-based approaches to solid-state, thermal-to-electrical energy conversion are investigated.