Spin echo dynamics under an applied drift field in graphene nanoribbon superlattices

被引：7
|
作者：
Prabhakar, Sanjay [1 ]
Melnik, Roderick [1 ,2 ]
Bonilla, Luis L. [2 ]
Raynolds, James E. [3 ]
机构：
[1] Wilfrid Laurier Univ, M Lab 2NeT, Waterloo, ON N2L 3C5, Canada
[2] Univ Carlos III Madrid, Gregorio Millan Inst, Leganes 28911, Spain
[3] Drinker Biddle & Reath LLP, Washington, DC 20005 USA
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 23期
基金：
加拿大自然科学与工程研究理事会;
关键词：
34;
D O I：
10.1063/1.4836395
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We investigate the evolution of spin dynamics in graphene nanoribbon superlattices (GNSLs) with armchair and zigzag edges in the presence of a drift field. We determine the exact evolution operator and show that it exhibits spin echo phenomena due to rapid oscillations of the quantum states along the ribbon. The evolution of the spin polarization is accompanied by strong beating patterns. We also provide detailed analysis of the band structure of GNSLs with armchair and zigzag edges. (C) 2013 AIP Publishing LLC.
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页数：5
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