National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [61371065, 61101009, 61201080]; Hunan Provincial Natural Science Foundation of ChinaNatural Science Foundation of Hunan Province [2015JJ2009]; Scientific Research Fund of Hunan Provincial Education DepartmentHunan Provincial Education Department [14A013]; PhD Research Foundation of Changsha University of Science and Technology; 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
机构署名：
本校为第一且通讯机构
院系归属：
物理与电子科学学院
摘要：
From first-principles methods, the spin-dependent electronic properties of zigzag-edged graphene nano-ribbons (ZGNRs) with a line defect (558-defect) are investigated systematically and compared to those of the pristine ZGNR. Results show that the line defect possesses an obvious tuning effect on the spin-polarization of the edge carbon atoms of the defective ZGNRs, and the spin-polarization and spin-transport are sensitive to the position of line defects. The defective ZGNRs can realize a transition from antiferromagnetism (AFM) to ferrimagnetism and ferromagnetism (FM) via changing the posit...
