弗洛奎特理论
石墨烯
石墨烯纳米带
丝带
带隙
物理
凝聚态物理
光子
GSM演进的增强数据速率
相(物质)
光子能量
材料科学
量子力学
电信
非线性系统
计算机科学
复合材料
作者
Weijie Wang,Xiaolong Lüu,Hang Xie
出处
期刊:Chinese Physics B
[IOP Publishing]
日期:2021-01-20
卷期号:30 (6): 066701-066701
被引量:13
标识
DOI:10.1088/1674-1056/abddaa
摘要
Floquet theorem is widely used in the light-driven systems. But many 2D-materials models under the radiation are investigated with the high-frequency approximation, which may not be suitable for the practical experiment. In this work, we employ the non-perturbative Floquet method to strictly investigate the photo-induced topological phase transitions and edge states properties of graphene nanoribbons under the light irradiation of different frequencies (including both low and high frequencies). By analyzing the Floquet energy bands of ribbon and bulk graphene, we find the cause of the phase transitions and its relation with edge states. Besides, we also find the size effect of the graphene nanoribbon on the band gap and edge states in the presence of the light.
科研通智能强力驱动
Strongly Powered by AbleSci AI