Figure 3.

Charge density distributions of two orbitals at the Dirac point. The (a) bonding and (b) antibonding bonds. The isovalues are set to 0.03 Å -3; 3 ×3 supercells are given for the sake of clarity.

Niu et al. Nanoscale Research Letters 2013 8:469   doi:10.1186/1556-276X-8-469
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