Abstract
The electron's charge and spin degrees of freedom are at the core of modern electronic devices.With the in-depth investigation of two-dimensional materials,another degree of freedom,valley,has also attracted tremendous research in-terest.The intrinsic spontaneous valley polarization in two-dimensional magnetic systems,ferrovalley material,provides convenience for detecting and modulating the valley.In this review,we first introduce the development of valleytronics.Then,the valley polarization forms by the p-,d-,and f-orbit that are discussed.Following,we discuss the investigation progress of modulating the valley polarization of two-dimensional ferrovalley materials by multiple physical fields,such as electric,stacking mode,strain,and interface.Finally,we look forward to the future developments of valleytronics.
基金项目
National Natural Science Foundation of China(12074301)
National Natural Science Foundation of China(12004295)
China's Postdoctoral Science Foundation funded project(2022M722547)
Open Project of State Key Laboratory of Surface Physics(KF2022_09)
Natural Science Foundation of Guizhou Provincial Education Department(ZK[2021]034)
维普
万方数据