Strong Electron-Phonon Coupling Mediates Carrier Transport in BiFeO₃.

ABSTRACT: The electron-phonon interaction is known as one of the major mechanisms determining electrical and thermal properties. In particular, it alters the carrier transport behaviors and sets fundamental limits to carrier mobility. Establishing how electrons interact with phonons and the resulting impact on the carrier transport property is significant for the development of high-efficiency electronic devices. Here, carrier transport behavior mediated by the electron-phonon coupling in BiFeO₃ epitaxial thin films is directly observed. Acoustic phonons are generated by the inverse piezoelectric effect and coupled with photocarriers. Via the electron-phonon coupling, doughnut shape carrier distribution has been observed due to the coupling between hot carriers and phonons. The hot carrie

SUBMITTER: Ou Z 

PROVIDER: S-EPMC10401121 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature