Journal ArticleDOI
Low-frequency charge noise in suspended aluminum single-electron transistors
TLDR
In this paper, a fabrication method for suspended metallic single-electron transistors (SETs) utilizing a combination of conventional angle evaporation technique and ashing of the underlying organic polymer was developed.Abstract:
The authors have developed a fabrication method for suspended metallic single-electron transistors (SETs) utilizing a combination of conventional angle evaporation technique and ashing of the underlying organic polymer. The authors’ Al-based suspended devices exhibit clear Coulomb blockade effects typical for conventional SETs. The measured low-frequency charge noise is rather low but still within the range reported for conventional Al devices. We suggest that the noise level can be further reduced by decreasing the effective SET temperature.read more
Citations
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Enhanced photocatalytic activity of hierarchical ZnO nanoplate-nanowire architecture as environmentally safe and facilely recyclable photocatalyst
TL;DR: A hierarchical ZnO nanoplate-nanowire (ZNP-ZNW) architecture was used as an environmentally safe and recyclable photocatalyst in this article, which showed greatly enhanced photocatalytic activity compared with a monomorphological structure in the degradation of methyl orange.
Journal ArticleDOI
Qubit-induced phonon blockade as a signature of quantum behavior in nanomechanical resonators
TL;DR: In this article, a superconducting quantum two-level system is coupled to the nanomechanical resonator and is used to induce the phonon self-interaction, and the dynamics of the induced nonlinear oscillator is studied via the Cahill-Glauber s-parametrized quasiprobability distributions.
Journal ArticleDOI
Suspended metal wire array as a thermoacoustic sound source
TL;DR: In this article, the authors demonstrate that a suspended metal wire array can be used to produce high-pressure sound waves over a wide spectrum using the thermoacoustic effect, and they have potential for applications especially in the ultrasound range.
Journal ArticleDOI
Charge noise in single-electron transistors and charge qubits may be caused by metallic grains
TL;DR: In this article, measurements of low-frequency noise in a single-electron transistor (SET) from a few hertz up to 10 MHz were done for different bias and gate voltages, which allow us to separate noise contributions from different noise sources.
Journal ArticleDOI
In situ electrochemically etching-derived ZnO nanotube arrays for highly efficient and facilely recyclable photocatalyst
TL;DR: In this paper, a facile two-step electrochemical method was presented to achieve ZnO nanotube (ZNT) arrays via in situ electrochemically etching electrodeposited ZnNO nanorod (ZNR) arrays, which simultaneously considered the recyclability and high surface to volume (S/V) ratio of ZNT arrays used as the photocatalyst.
References
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Journal ArticleDOI
Observation of single-electron charging effects in small tunnel junctions.
T. A. Fulton,G. J. Dolan +1 more
TL;DR: Unusual structure and large electric-field--induced oscillations have been observed in the current-voltage curves of small-area tunnel junctions arranged in a low-capacitance multiple-junction configuration.
Journal ArticleDOI
Coulomb blockade of single-electron tunneling, and coherent oscillations in small tunnel junctions
TL;DR: In this article, a microscopic approach to the theory of small, current-biased tunnel junctions is developed, which yields a natural account of the secondary quantization of both the single-electron (quasiparticle) and Cooper-pair (Josephson) current components.
Journal ArticleDOI
Decoherence in a superconducting quantum bit circuit
G. Ithier,Eddy Collin,Philippe Joyez,P. J. Meeson,P. J. Meeson,Denis Vion,Daniel Esteve,Fabio Chiarello,Alexander Shnirman,Yuriy Makhlin,Yuriy Makhlin,Josef Schriefl,Josef Schriefl,Gerd Schön +13 more
TL;DR: This work presents experiments, inspired from NMR, that characterize decoherence in a particular superconducting quantum bit circuit, the quantronium, and introduces a general framework for the analysis of decoherent, based on the spectral density of the noise sources coupled to the qubit.
Journal ArticleDOI
Charge echo in a Cooper-pair box
TL;DR: A spin-echo-type technique is applied to an artificial two-level system that utilizes a charge degree of freedom in a small superconducting electrode, suggesting that low-frequency energy-level fluctuations due to the 1/f charge noise dominate the dephasing in the system.