Topic
Conductance
About: Conductance is a research topic. Over the lifetime, 8088 publications have been published within this topic receiving 235961 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, the changes in conductance of polycrystalline, undoped β-Ga2O3 thin films in the temperature range of 400-650° C are described.
Abstract: H2-induced changes of electrical conductivity in polycrystalline, undoped β-Ga2O3 thin films in the temperature range of 400–650° C are described. The sheet conductance of these films depends reversibly, according to a power law σ□ ∼ p
1/3, on the partial pressure of hydrogen in the ambient atmosphere of the Ga2O3 film. A bulk vacancy mechanism is excluded by experiments and it is shown that the interaction is based on a surface effect. Changes in conductance are discussed to result from the formation of an accumulation layer due to chemisorption on the grain surfaces. Typical coverages are determined to be approximately 10−4 ML for pH2=0.05 bar and T=600° C. A possible explanation of the σ□ ∼ p
1/3 power law is provided.
79 citations
TL;DR: In this paper, the authors analyzed electrical properties in Au/SiO"2/n-Si (MOS) capacitors by using the high-low frequency (C"H"F-C"L"F) capacitance and conductance methods.
79 citations
TL;DR: In this article, full distributions of conductance through quantum dots with single-mode leads are reported for both broken and unbroken time-reversal symmetry, and they agree well with random matrix theory calculations that account for a finite dephasing time, once broadening due to finite temperature.
Abstract: Full distributions of conductance through quantum dots with single-mode leads are reported for both broken and unbroken time-reversal symmetry. Distributions are nongaussian and agree well with random matrix theory calculations that account for a finite dephasing time, $\tau_\phi$, once broadening due to finite temperature $T$ is also included. Full distributions of the derivatives of conductance with respect to gate voltage $P(dg/dV_g)$ are also investigated.
79 citations
TL;DR: In this article, the conductance of carbon nanotubes with a vacancy was studied in a tight-binding model, and the Fermi energy dependence of conductance was examined.
Abstract: The conductance of carbon nanotubes with a vacancy is studied in a tight-binding model. We examine the Fermi energy e dependence of the conductance and show it is quantized into zero, one, and two times the conductance quantum \(e^{2}/\pi\hbar\) depending on the type of vacancy in the half-filled case, i.e., e= 0. In the presence of a magnetic field, the conductance is scaled by the component of the magnetic field in the direction of the vacancy.
79 citations
TL;DR: It is reported that the conductance of DNA duplexes increases by approximately one order of magnitude when its conformation is changed from the B-form to the A-form, and this large conductance increase is fully reversible, and by controlling the chemical environment, the Conductance can be repeatedly switched between the two values.
Abstract: DNA is a promising molecule for applications in molecular electronics because of its unique electronic and self-assembly properties. Here we report that the conductance of DNA duplexes increases by approximately one order of magnitude when its conformation is changed from the B-form to the A-form. This large conductance increase is fully reversible, and by controlling the chemical environment, the conductance can be repeatedly switched between the two values. The conductance of the two conformations displays weak length dependencies, as is expected for guanine-rich sequences, and can be fit with a coherence-corrected hopping model. These results are supported by ab initio electronic structure calculations that indicate that the highest occupied molecular orbital is more disperse in the A-form DNA case. These results demonstrate that DNA can behave as a promising molecular switch for molecular electronics applications and also provide additional insights into the huge dispersion of DNA conductance values found in the literature.
79 citations