1208.6113 (M. Schulze et al.)

Adiabatic pumping in the quasi-one-dimensional triangle lattice    [PDF]

M. Schulze, D. Bercioux, D. F. Urban

We analyze the properties of the quasi-one-dimensional triangle lattice emphasizing the occurrence of flat bands and band touching via the tuning of the lattice hopping parameters and on-site energies. The spectral properties of the infinite system will be compared with the transmission through a finite piece of the lattice with attached semi-infinite leads. Furthermore, we investigate the adiabatic pumping properties of such a system: depending on the transmission through the lattice, this results in nonzero integer charge transfers or transfers that increase linearly with the lattice size.

View original: http://arxiv.org/abs/1208.6113