Flux induced semiconducting behavior of a quantum network

Details Flux induced semiconducting behavior of a quantum network Flux induced semiconducting behavior of a quantum network

2009-03-30

arxiv.org/abs/0903.5215v1

Physical Review B, Volume 79, Page 193309 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 7 figures

Scientific paper

10.1103/PhysRevB.79.193309

We show that a diamond shaped periodic network, recently proposed as a model of a spin filter (A. Aharony {\em et al.} \cite{aharon08}) is capable of behaving as a p-type or an n-type semiconductor depending on a suitable choice of the on-site potentials of the atoms occupying the vertices of the lattice, and the strength of the magnetic flux threading each plaquette of the network. A detailed study of the density of states of an infinite network is made together with the conductance of finite sized system to establish the idea.

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