The Effects of Negative Differential Resistance, Bipolar Spin-Filtering, and Spin-Rectifying on Step-Like Zigzag Graphene Nanoribbons Heterojunctions with Single or Double Edge-Saturated Hydrogen

被引：5

作者：

Wang, Lihua ^{[1
]}

Zhao, Jianguo ^{[1
]}

Ding, Bingjun ^{[2
]}

Guo, Yong ^{[1
]}

机构：

[1] Shanxi Datong Univ, Sch Phys & Elect Sci, Datong 037009, Peoples R China

[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2017年 / 46卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Graphene; density functional theory; nonequilibrium Green's function; heterojunction; negative differential resistance; TRANSPORT-PROPERTIES; ELECTRODES; MOLECULE; MAGNETORESISTANCE; JUNCTIONS; STATE;

D O I：

10.1007/s11664-016-4931-5

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this study, we investigated the spin-resolved transport aspects of step-like zigzag graphene ribbons (ZGNRs) with single or double edge-saturated hydrogen using a method that combined the density functional theory with the nonequilibrium Green's function method under the local spin density approximation. We found that, when the ZGNR-based heterojunctions were in a parallel or antiparallel layout, negative differential resistance, the maximum bipolar spin-filtering, and spin-rectifying effects occurred synchronously except for the case of spin-down electrons in the parallel magnetic layouts. Interestingly, these spin-resolved transport properties were almost unaffected by altering the widths of the two component ribbons. Therefore, step-like ZGNR heterojunctions are promising for use in designing high-performance multifunctional spintronic devices.

引用

页码：535 / 543

页数：9

共 33 条

[21] The SIESTA method for ab initio order-N materials simulation [J].

Soler, JM ;

Artacho, E ;

Gale, JD ;

García, A ;

Junquera, J ;

Ordejón, P ;

Sánchez-Portal, D .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (11) :2745-2779

[22] Ab initio modeling of quantum transport properties of molecular electronic devices -: art. no. 245407 [J].

Taylor, J ;

Guo, H ;

Wang, J .

PHYSICAL REVIEW B, 2001, 63 (24)

[23] EFFICIENT PSEUDOPOTENTIALS FOR PLANE-WAVE CALCULATIONS [J].

TROULLIER, N ;

MARTINS, JL .

PHYSICAL REVIEW B, 1991, 43 (03) :1993-2006

[24] Bipolar spin-filtering effect in B- or N-doped zigzag graphene nanoribbons with asymmetric edge hydrogenation [J].

Wang, Li-hua ;

Zhang, Zi-zhen ;

Zhao, Jian-Guo ;

Ding, Bing-jun ;

Guo, Yong ;

Jin, Chun .

PHYSICS LETTERS A, 2015, 379 (43-44) :2860-2865

[25] Structure, stability, edge states, and aromaticity of graphene ribbons [J].

Wassmann, Tobias ;

Seitsonen, Ari P. ;

Saitta, A. Marco ;

Lazzeri, Michele ;

Mauri, Francesco .

PHYSICAL REVIEW LETTERS, 2008, 101 (09)

[26] Magnetic transport properties of DBTAA-based nanodevices with graphene nanoribbon electrodes [J].

Wu, Qiu-Hua ;

Zhao, Peng ;

Chen, Gang .

ORGANIC ELECTRONICS, 2015, 25 :308-316

[27] Spin-dependent transport properties in a pyrene-graphene nanoribbon device [J].

Wu, QiuHua ;

Zhao, Peng ;

Liu, DeSheng .

RSC ADVANCES, 2016, 6 (20) :16634-16639

[28] Electronic and magnetic properties of zigzag graphene nanoribbon with one edge saturated [J].

Xu, B. ;

Yin, J. ;

Xia, Y. D. ;

Wan, X. G. ;

Jiang, K. ;

Liu, Z. G. .

APPLIED PHYSICS LETTERS, 2010, 96 (16)

[29] Edge Hydrogenation-Induced Spin-Filtering and Rectifying Behaviors in the Graphene Nanoribbon Heterojunctions [J].

Zeng, Jing ;

Chen, Ke-Qiu ;

He, Jun ;

Zhang, Xiao-Jiao ;

Sun, Chang Q. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (50) :25072-25076

[30] Graphene-based bipolar spin diode and spin transistor: Rectification and amplification of spin-polarized current [J].

Zeng, Minggang ;

Shen, Lei ;

Zhou, Miao ;

Zhang, Chun ;

Feng, Yuanping .

PHYSICAL REVIEW B, 2011, 83 (11)

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