2015/12/01 by Piotr Chudziński, P. Chudzinski
Materials Science · Physics and Astronomy · #Acoustics #Advanced Thermoelectric Materials and Devices #Bismuth #Condensed matter physics #Coupling (piping) #Lattice (music) #Materials science #Optics #Phonon #Physics #Physics of Superconductivity and Magnetism #Plasmon #Quantum and electron transport phenomena #Quantum mechanics #Seebeck coefficient #Thermoelectric effect #cond-mat.str-el
paper · pdf · doi:10.1140/epjb/e2015-60674-3
published as Eur. Phys. J. B 88: 344 (2015) · accepted in EPJB, to appear with a highlight
openalex publication_date 2015/12/01 · arxiv created 2015/12/10 · arxiv updated 2016/06/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Using diagrammatic methods we derive an effective interaction between a low energy collective movement of fermionic liquid (acoustic plasmon) and acoustic phonon. We show that the coupling between the plasmon and the lattice has a very non-trivial, resonant structure. When real and imaginary parts of the acoustic plasmon’s velocity are of the same order as the phonon’s velocity, the resonance qualitatively changes the nature of phonon-drag. In the following we study how magneto-thermoelectric properties are affected. Our result suggests that the novel mechanism of energy transfer between electron liquid and crystal lattice can be behind the huge Nernst effect in bismuth.