Phys.org September 6, 2021
An international team of researchers (USA -Boston College, Florida State University, UT Dallas, Switzerland) found that a strong interaction between electrons and phonons alters the transport of electrons from the diffusive, or particle-like, to hydrodynamic, or fluid-like, regime in a synthesis of Niobium and Germanium (NbGe2). Electrical resistivity measurements showed a higher-than-expected mass for electrons, and X-ray diffraction revealed the crystal structure of the material. The mass of electrons in all trajectories was three times larger than the expected value. The strong electron-phonon interaction was responsible for the heavy electron behavior. In future work the team will focus on controlling the hydrodynamic fluid of electrons in such materials and engineering new electronic devices…read more. Open Access TECHNICAL ARTICLE
de Haas-van Alphen (dHvA) effect. Credit: Nature Communications volume 12, Article number: 5292 (2021)Â