Flux induced semiconducting behavior of a quantum network

Abstract

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.

4 pages, 7 figures

References in corpus (13)

• Fano Resonance in a Quantum Wire with a Side-coupled Quantum Dot
• Interaction induced delocalisation for two particles in a periodic potential
• Aharonov-Bohm oscillations in a mesoscopic ring with a quantum dot
• Pairing of Cooper Pairs in a Fully Frustrated Josephson Junction Chain
• Transport through a quantum wire with a side quantum-dot array
• Networks of quantum nanorings: programmable spintronic devices
• Spin filters with Fano dots
• Rashba effect induced localization in quantum networks
• Fano effect in a ring-dot system with tunable coupling
• Rashba effect in quantum networks
• Spin filtering by a periodic nanospintronic devices
• Spin filtering due to quantum interference in periodic mesoscopic networks
• Spin Filter Effects in Mesoscopic Ring Structures

Cited by in corpus (11)

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• Spin transport through a quantum network: Effects of Rashba spin orbit interaction and Aharonov-Bohm flux
• Mobility edge phenomenon in a Hubbard chain: A mean field study
• Staggered and extreme localization of electron states in fractal space
• Engineering topological phase transition and Aharonov-Bohm caging in a flux-staggered lattice
• High temperature conductance of a two-dimensional superlattice controlled by spin-orbit interaction
• Spin-orbit interaction controlled properties of two-dimensional superlattices: Spintronic crystals
• Exotic electron states and tunable magneto-transport in a fractal Aharonov-Bohm interferometer
• Spin filtering and switching action in a diamond network with magnetic-nonmagnetic atomic distribution
• Transport characteristics of a $\mathcal{P}\mathcal{T}$-symmetric non-Hermitian system: Effect of environmental interaction
• Antiferromagnetic diamond network as an efficient spin filter: Proposition of a spin-specific semi-conducting behavior