期刊论文

Fan, Zhi-Qiang;Zhang, Zhen-Hua

英文

Carbon

0008-6223

2017

122

687-693

10.1016/j.carbon.2017.07.019

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11674039, 61371065, 61404011]; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2016M601099]; Hunan Provincial Natural Science Foundation of ChinaNatural Science Foundation of Hunan Province [2015JJ2013, 2015JJ3002, 2015JJ2009]; Scientific Research Fund of Hunan Provincial Education DepartmentHunan Provincial Education Department [15A004, 14A013]; Construct Program of the Key Discipline in Hunan Province; Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province

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Spintronic systems exploit the fact that the electron current is composed of spin-up and spin-down carriers, which are more easily disturbed than electronic systems. Here, we investigate the spin transport properties of a single phenalenyl or pyrene molecule connected to zigzag graphene nanoribbon electrodes by using the non-equilibrium Green's function formalism with density functional theory. We found the difference of the symmetry on these two molecules will bring a remarkable effect on the spin transport properties of the devices. The spin-resolved currents of the single pyrene molecular d...