期刊论文

Deng, X. Q.;Zhang, Z. H.

英文

Organic Electronics

1566-1199

2017

41

376-383

10.1016/j.orgel.2016.11.033

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [61371065, 11674039]; Hunan Provincial Natural Science Foundation of ChinaNatural Science Foundation of Hunan Province [2015JJ3002, 2015JJ2009, 2015JJ2013]; Scientific Research Fund of Hunan Provincial Education DepartmentHunan Provincial Education Department [14A013, 15A004, 13ZA0089]; Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province; Scientific Research Innovation Fund for Postgraduate of Changsha University of Science and Technology

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Based on the first-principles method, the magnetic properties for zigzag–edge graphene nanoribbon (ZGNR) junctions are investigated. The results show the system had the ferromagnetic or antiferromagnetic ground state depending on the connection sites between ZGNR electrodes and the central ZGNR. The junction displays a metallic behavior when the central ZGNR is connected at the middle site of electrodes with a ferromagnetic state, but shows obvious spin semiconductor feature when the connection site is shifted to the edge of the ZGNR. For the ...