Charge susceptibilities of armchair graphene nanoribbon in the presence of magnetic field

作     者：H Rezania F Azizi 无

作者机构：Department of PhysicsRazi University 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2016年第25卷第9期

页      面：511-517页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 070301[理学-无机化学] 0702[理学-物理学] 

主　　题：armchair graphene nanoribbon Green's function 

摘      要：We present the behaviors of both dynamical and static charge susceptibilities of undoped armchair graphene nanoribbon using the Green＇s function approach in the context of tight binding model ***,the effects of magnetic field on the the plasmon modes of armchair graphene nanoribbon are investigated via calculating the correlation function of charge density *** results show that the increase of magnetic field makes the high-frequency plasmon mode for both metallic and insulating cases *** also show that low-frequency plasmon mode for metallic nanoribbon appears due to increase of magnetic ***,the number of collective excitation modes increases with ribbon width at zero magnetic ***,the temperature dependence of the static charge structure factor of armchair graphene nanoribbon is *** effects of both magnetic field and ribbon width on the static charge structure factor are discussed in detail.