Topic
Conductance
About: Conductance is a research topic. Over the lifetime, 8088 publications have been published within this topic receiving 235961 citations.
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TL;DR: The results suggest that the ability to exclude water from the NR surface governs ligand G values, which varied with ligand chemistry but not molecule length.
Abstract: Thermal interface conductance was measured for soluble gold nanorods (NRs) coated with mercaptocarboxylic acids (HS-(CH2)nCOOH, n = 5, 10, 15), thiolated polyethylene glycols (MW = 356, 1000, 5000), and HS-(CH2)15-COOH-coated NRs further coated with alternating layers of poly(diallyldimethylammonium chloride) and poly(sodium styrenesulfonate). Ferguson analysis determined ligand thickness. The thermal-diffusion-dominated regime of transient absorption spectra was fit to a continuum heat diffusion finite element model to obtain the thermal interface conductance, G, which varied with ligand chemistry but not molecule length. The results suggest that the ability to exclude water from the NR surface governs ligand G values.
57 citations
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TL;DR: In this article, the authors used an admittance spectroscopy technique to study the electrical properties of the samples La 0.67 Ba 0.33 Mn 1− x Fe x O 3, and found that the material evolves from metallic to semi-insulating behavior when increasing Fe content.
57 citations
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TL;DR: In this article, the results of a numerical calculation on the quantum transport properties in junctions of a two-dimensional electron gas and a superconductor in the presence of a perpendicular magnetic field were presented.
Abstract: We present the results of a numerical calculation on the quantum transport properties in junctions of a two-dimensional electron gas and a superconductor in the presence of a perpendicular magnetic field. The low-field conductance drops in a steplike manner, whenever the Landau levels are depopulated, provided that quasiparticle excitations are almost perfectly Andreev reflected from the interface. If the normal reflection is enhanced, the conductance exhibits a sinusoidal oscillation. In contrast to the behavior in conventional conductors, the maxima of the oscillation take place at the depopulation thresholds. In high magnetic fields, a periodic transmission resonance with a complete disappearance of the conductance is found, irrespective of the Andreev-reflection probability. The current distribution indicates that this high-field oscillation is ascribed to the skipping orbit along the interface. We show that the plateau value in the Hall resistance remains unchanged when one of the leads is replaced by the superconductor. Using the selective edge-state detection technique, the distribution of Andreev-reflected quasiparticles among the edge states can be evaluated.
57 citations
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01 Jan 198257 citations
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TL;DR: The properties of a system consisting of a thin phospholipid film separating two electrolyte solutions containing 1mm 2,4-dinitrophenol have been studied and the maximum conductance was found to be 1.4×10−5 mhos cm−2 at pH 4.2.
Abstract: The properties of a system consisting of a thin phospholipid film separating two electrolyte solutions containing 1mm 2,4-dinitrophenol have been studied. Both the variation of electrical conductance as a function of pH, keeping the pH the same on both sides of the membrane, and the nonlinear variation of electrical potential difference as a function of pH difference across the membrane have been explained in terms of lipid-soluble complexes of the typeXP
2
−
whereX is a cation andP dinitrophenate. The maximum conductance was found to be 1.4×10−5 mhos cm−2 at pH 4.2.
57 citations