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We demonstrate optical transport of cold cesium atoms over millimeter-scale distances along an optical nanofiber. The atoms are trapped in a one-dimensional optical lattice formed by a two-color evanescent field surrounding the nanofiber,…

We have measured electron transport in small bundles of identical conducting Molybdenum Selenide nanowires where the number of weakly interacting one-dimensional chains ranges from 1-300. The linear conductance and current in these…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Latha Venkataraman , Yeon Suk Hong , Philip Kim

We present transport measurements of electrons on the surface of liquid helium in a microchannel device in which a constriction may be formed by a split-gate electrode. The surface electron current passing through the microchannel first…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 David Rees , Isao Kuroda , Claire Marrache-Kikuchi , Moritz Hofer , Paul Leiderer , Kimitoshi Kono

In this communication we study the transport properties of two-dimensional assemblies of [Fe(Htrz)2(trz)](BF4) spin-crossover nanoparticles (NPs) with two different morphologies. The NPs have been synthesized made in a similar manner than…

Rapid and cost-effective DNA sequencing at the single nucleotide level might be achieved by measuring a transverse electronic current as single-stranded DNA is pulled through a nano-sized pore. In order to enhance the electronic coupling…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 X. Chen , I. Rungger , C. D. Pemmaraju , U. Schwingenschlogl , S. Sanvito

Carbon nanotubes (CNT) have a very large application potential in the rapid developing field of molecular electronics. Infinite single-wall metallic CNTs have theoretically a conductance of 4e2/h because of the two electronic bands crossing…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 N. Ranjan , R. Gutierrez-Laliga , S. Krompiewski , G. Cuniberti

The study of lead halide perovskite nanocrystal based light-emitting diodes (LEDs) has advanced significantly, with notable improvements in stability and optical properties. However, optimizing charge carrier injection and transport remains…

Room-temperature quasi-ballistic electron transport in double-wall carbon nanotubes (DWNT) is demonstrated. Conductance dependence on the length was measured by submerging DWNTs into liquid mercury. The conductance plots show plateaus,…

Materials Science · Physics 2009-11-10 Hisashi Kajiura , Houjin Huang , Alexey Bezryadin

A 1D model study of charge transport in nano-devices is made by comparing multi-configuration time dependent Hartree-Fock and frozen core calculations. The influence of exchange and Coulomb correlation on the tunneling current is…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Zhongxi Zhang , C. F. Destefani , Chris McDonald , Thomas Brabec

Electron transport in nanoscale devices can often result in nontrivial spatial patterns of voltage and current that reflect a variety of physical phenomena, particularly in nonlocal transport regimes. While numerous techniques have been…

With the goal to elucidate the nature of spin-dependent electronic transport in ferromagnetic atomic contacts, we present here a combined experimental and theoretical study of the conductance and shot noise of metallic atomic contacts made…

Mesoscale and Nanoscale Physics · Physics 2016-03-04 Ran Vardimon , Manuel Matt , Peter Nielaba , Juan Carlos Cuevas , Oren Tal

Quantum interference in nano-electronic devices could lead to reduced-energy computing and efficient thermoelectric energy harvesting. When devices are shrunk down to the molecular level it is still unclear to what extent electron…

The depth distribution of the transport properties as well as the temperature dependence of the low field magneto-conductance for several c-axis oriented GaN nanowall network samples grown with different average wall-widths are…

Mesoscale and Nanoscale Physics · Physics 2014-11-04 H. P. Bhasker , Varun Thakur , S. M. Shivaprasad , S. Dhar

High-mobility complex-oxide heterostructures and nanostructures offer new opportunities for extending the paradigm of quantum transport beyond the realm of traditional III-V or carbon-based materials. Recent quantum transport investigations…

Thermal properties have an outsized impact on efficiency and sensitivity of devices with nanoscale structures, such as in integrated electronic circuits. A number of thermal conductivity measurements for semiconductor nanostructures exist,…

Single walled carbon nanotubes with Pd ohmic contacts and lengths ranging from several microns down to 10 nm are investigated by electron transport experiments and theory. The mean free path (mfp) for acoustic phonon scattering is estimated…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Ali Javey , Jing Guo , Magnus Paulsson , Qian Wang , David Mann , Mark Lundstrom , Hongjie Dai

We investigate the electronic transport properties of semiconducting ($m$,$n$) carbon nanotubes (CNTs) on the mesoscopic length scale with arbitrarily distributed realistic defects. The study is done by performing quantum transport…

Mesoscale and Nanoscale Physics · Physics 2018-11-26 Fabian Teichert , Andreas Zienert , Jörg Schuster , Michael Schreiber

We present detailed first-principles calculations of the electron-conduction properties of a three-sodium-atom nanowire suspended between semi-infinite crystalline Na(001) electrodes during its elongation. Our investigations reveal that the…

Materials Science · Physics 2009-11-10 Y. Egami , T. Sasaki , T. Ono , K. Hirose

Others have solved the Schr\"odinger equation to estimate the tunneling current between two electrodes at specified potentials, or the transmission through a potential barrier, assuming that an incident wave causes one reflected wave and…

Mesoscale and Nanoscale Physics · Physics 2020-09-29 Mark J. Hagmann

Atomic-scale charge transport properties are not only of significant fundamental interest but also highly relevant for numerous technical applications. However, experimental methods which are capable of detecting charge transport at the…

Mesoscale and Nanoscale Physics · Physics 2023-02-07 Markus Leisegang , Robert Schindhelm , Jens Kügel , Matthias Bode