Nanowerk  November 26, 2024 Materials with axis-dependent conduction polarity (ADCP), which exhibit electron-like and hole-like conduction along distinct crystallographic axes, have garnered interest as potential candidates for effective transverse thermoelectric (TTE) conversion. However, the challenge of designing materials with ADCP is still unresolved. Researchers in Japan conducted experimental and computational investigations on the ADCP in thermopower of WSi single crystals and found that the ADCP stems from the mixed-dimensionality of the Fermi surfaces, characterized by the coexistence of quasi-one-dimensional electron-like and quasi-two-dimensional hole-like sheets. They demonstrated TTE conversion in WSi single crystals by detecting the electromotive force along the perpendicular […]