Partially unzipped carbon nanotubes as magnetic field sensors

被引：10

作者：

Costamagna, S. ^{[1
,2
,3
]}

Schulz, A. ^{[1
]}

Covaci, L. ^{[1
]}

Peeters, F. ^{[1
]}

机构：

[1] Univ Antwerp, Dept Phys, B-2020 Antwerp, Belgium

[2] Univ Nacl Rosario, Fac Ciencias Exactas Ingn & Agrimensura, RA-2000 Rosario, Santa Fe, Argentina

[3] Inst Fis Rosario, RA-2000 Rosario, Santa Fe, Argentina

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 23期

关键词：

D O I：

10.1063/1.4726039

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The conductance through graphene nanoribbons (GNR) connected to a partially unzipped carbon nanotube (CNT) is studied in the presence of an external magnetic field applied parallel to the long axis of the tube by means of non-equilibrium Green's function technique. We consider CNTs that are partially unzipped to form armchair-GNR/zigzag-CNT/armchair-GNR or zigzag-GNR/armchair-CNT/zigzag-GNR junctions. We find that the inclusion of a longitudinal magnetic field affects the electronic states only in the CNT region, leading to the suppression of the conductance at low energies. We demonstrate that both types of junctions can be used as magnetic field sensors. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4726039]

引用

页数：3

共 13 条

[1]

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