FeSb2 exhibits extraordinary physical properties with a colossal thermopower reaching 45mV/K at ~10K, while maintaining fairly low electrical resistivity. This results in extremely high thermoelectric power factors exceeding 2,000 ?W/(K2 · cm). If the thermal conductivity can be reduced to a few W/(K·m), then a thermoelectric figure of merit of unity is within reach at cryogenic temperatures opening up for a new solid state cooling technology. Furthermore, the physical properties of FeSb2 are also of immense fundamental interest since the material is believed to be a strongly correlated narrow band gap semiconductor. In the last decade a wide range of studies have explored the synthesis, structure and properties of FeSb2 and related materials, and here an overview of the efforts is provided.
Strongly correlated intermetallics- FeSb2
2013
Abstract
FeSb2 exhibits extraordinary physical properties with a colossal thermopower reaching 45mV/K at ~10K, while maintaining fairly low electrical resistivity. This results in extremely high thermoelectric power factors exceeding 2,000 ?W/(K2 · cm). If the thermal conductivity can be reduced to a few W/(K·m), then a thermoelectric figure of merit of unity is within reach at cryogenic temperatures opening up for a new solid state cooling technology. Furthermore, the physical properties of FeSb2 are also of immense fundamental interest since the material is believed to be a strongly correlated narrow band gap semiconductor. In the last decade a wide range of studies have explored the synthesis, structure and properties of FeSb2 and related materials, and here an overview of the efforts is provided.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
