Efficient spin-filter and negative differential resistance behaviors in FeN4 embedded graphene nanoribbon device

被引：9

作者：

Liu, N. ^{[1
,2
]}

Liu, J. B. ^{[1
,2
]}

Yao, K. L. ^{[3
,4
]}

Ni, Y. ^{[5
]}

Wang, S. L. ^{[6
]}

机构：

[1] Hubei Normal Univ, Coll Phys & Elect Sci, Huangshi 435002, Peoples R China

[2] Hubei Normal Univ, Hubei Key Lab Pollutant Anal & Reuse Technol, Huangshi 435002, Peoples R China

[3] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China

[4] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China

[5] Huazhong Univ Sci & Technol, Wenhua Coll, Wuhan 430074, Peoples R China

[6] Hebei Univ Engn, Sch Sci, Handan 056038, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2016年 / 119卷 / 10期

基金：

中国国家自然科学基金;

关键词：

NITROGEN-DOPED GRAPHENE; TRANSPORT;

D O I：

10.1063/1.4943500

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper, we propose a new device of spintronics by embedding two FeN4 molecules into armchair graphene nanoribbon and sandwiching them between N-doped graphene nanoribbon electrodes. Our first-principle quantum transport calculations show that the device is a perfect spin filter with high spin-polarizations both in parallel configuration (PC) and antiparallel configuration (APC). Moreover, negative differential resistance phenomena are obtained for the spin-down current in PC, and the spin-up and spin-down currents in APC. These transport properties are explained by the bias-dependent evolution of molecular orbitals and the transmission spectra. (C) 2016 AIP Publishing LLC.

引用

页数：5