节点文献
Modulation of magnetic and electrical properties of bilayer graphene quantum dots using rotational stacking faults
【摘要】 Bilayer graphene quantum dots with rotational stacking faults(RSFs) having different rotational angles were studied.Using the first-principles calculation, we determined that these stacking faults could quantitatively modulate the magnetism and the distribution of spin and energy levels in the electronic structures of the dots.In addition, by examining the spatial distribution of unpaired spins and Bader charge analysis, we found that the main source of magnetic moment originated from the edge atoms of the quantum dots.Our research results can potentially provide a new path for producing all-carbon nanodevices with different electrical and magnetic properties.
【Abstract】 Bilayer graphene quantum dots with rotational stacking faults(RSFs) having different rotational angles were studied.Using the first-principles calculation, we determined that these stacking faults could quantitatively modulate the magnetism and the distribution of spin and energy levels in the electronic structures of the dots.In addition, by examining the spatial distribution of unpaired spins and Bader charge analysis, we found that the main source of magnetic moment originated from the edge atoms of the quantum dots.Our research results can potentially provide a new path for producing all-carbon nanodevices with different electrical and magnetic properties.
【Key words】 bilayer graphene quantum dots; rotational stacking faults; first-principles calculation;
- 【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2019年07期
- 【分类号】TQ127.11;TB383.1
- 【被引频次】2
- 【下载频次】19