3 papers
quant-ph2008
Effect of Landau-Zener tunneling by the varying sweeping rate of external field
Jin-Bao Wang, Guo-Ping Tong
We study the effect of Landau-Zener (LZ) tunneling caused by the varying sweeping rate of external field, formulating and approximately solving the problem with many levels of the…
cond-mat.str-el2008
Effect of sigma electrons on the pi-electron behavior in single-wall carbon nanotubes
G. -P. Tong, Q. -P. Huang
The hybrid orbitals of single-wall carbon nanotubes are given according to the structure of the nanotube. Because the energy levels of these hybrid orbitals are close to each other…
cond-mat.str-el2008
Energy band of graphene ribbons under the tensile force
Yong Wei, Guo-Ping Tong, Sheng Li
According to the tight-binding approximation, we investigate the electronic structures of graphene ribbons with zigzag shaped edges (ZGRs) and armchair shaped edges (AGRs) drawn by…