Publication Date:
2018-09-05
Description:
Author(s): S. Y. Xiao, T. Kämpfe, Y. M. Jin, A. Haußmann, X. M. Lu, and L. M. Eng Domain-wall conductivity (DWC) in ferroelectrics receives a lot of attention these days, as it involves a confined two-dimensional electron gas at room temperature, which seems promising for devices. This study finds that neighboring domain walls (DWs) in periodically-poled LiNbO 3 exhibit opposite DWC behavior: A head-to-head configuration favors electron transport, while tail-to-tail inhibits it. This asymmetric conduction is quantified using a quantum-mechanical model that also accounts for the observed DW roughness. These findings allow tuning of DW-based electron gases in nanoelectronics, such as logic circuits, memory, or switching devices. [Phys. Rev. Applied 10, 034002] Published Tue Sep 04, 2018
Electronic ISSN:
2331-7019
Topics:
Physics