Classical-to-stochastic Coulomb blockade cross-over in aluminum arsenide wires

Abstract

We report low-temperature differential conductance measurements in aluminum arsenide cleaved-edge overgrown quantum wires in the pinch-off regime. At zero source-drain bias we observe Coulomb blockade conductance resonances that become vanishingly small as the temperature is lowered below $250\mathrm{mK}$. We show that this behavior can be interpreted as a classical-to-stochastic Coulomb blockade cross-over in a series of asymmetric quantum dots, and offer a quantitative analysis of the temperature-dependence of the resonances lineshape. The conductance behavior at large source-drain bias is suggestive of the charge density wave conduction expected for a chain of quantum dots.

arXiv commentversion 2: new figure 4, refined discussion

References in corpus (5)

• Experimental Evidence for Resonant-Tunneling in a Luttinger-Liquid
• Coulomb Blockade of Tunneling Through a Double Quantum Dot
• Fermi-Edge Resonance and Tunneling in Nonequilibrium Electron Gas
• Particle-hole symmetric Luttinger liquids in a quantum Hall circuit
• Aluminum arsenide cleaved-edge overgrown quantum wires

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• Suppression of Coulomb blockade peaks by electronic correlations in InAs nanowires
• 1D-FFLO state in the absence of time-reversal symmetry breaking