Dr. Xi Zhang， etc Published a paper on Applied Physics LettersHits [1744] Published :2014-09-01 16:25:10

The paper titled as “Magnetism induced by excess electrons trapped at diamagnetic edge-quantum well in multi-layer graphene” by Dr. Xi Zhang, etc, has been published on Applied Physics Letters。

Magnetism induced by excess electrons trapped at diamagnetic edge-quantum well in multi-layer graphene

Xi Zhang, Chao Wang, Chang Q Sun, and Dongfeng Diao*

In this paper, we clarified a robust mechanism of magnetism generated by excess electrons captured by edge-quantum well ofdiamagnetic armchair edges. Consistency between density functional theory calculations and electron cyclotron resonance experiments verified that: (1) Multi-layer armchair nanoribbons are stable with proper amounts of excess electrons which can provide net spin; (2) Since under-coordination induces lattice relaxation and potential well modulation, electrons tend to be trapped at edges; and (3) Neither large amount of excess electrons nor positive charges can induce magnetism. This work shed light on the development of graphene devices in its magnetic applications。

 Other Publications:  http://nanosurface.szu.edu.cn/cn/res_detail.php?id=210