Giant magnetoresistance in bilayer graphene nanoflakes

被引：3
|
作者：
Farghadan, Rouhollah [1 ]
Farekiyan, Marzieh [1 ]
机构：
[1] Univ Kashan, Dept Phys, Kashan, Iran
来源：
SOLID STATE COMMUNICATIONS | 2016年 / 242卷
关键词：
TRANSPORT; DEVICES; NANORIBBONS;
D O I：
10.1016/j.ssc.2016.05.011
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Coherent spin transport through bilayer graphene (BLG) nanoflakes sandwiched between two electrodes made of single-layer zigzag graphene nanoribbon was investigated by means of Landauer-Buttiker formalism. Application of a magnetic field only on BLG structure as a channel produces a perfect spin polarization in a large energy region. Moreover, the conductance could be strongly modulated by magnetization of the zigzag edge of AB-stacked BLG, and the junction, entirely made of carbon, produces a giant magnetoresistance (GMR) up to 100%. Intestinally, GMR and spin polarization could be tuned by varying BLG width and length. Generally, MR in a AB-stacked BLG strongly increases (decreases) with length (width). (C) 2016 Elsevier Ltd. All rights reserved.
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页码：1 / 5
页数：5
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