English
Related papers

Related papers: Planar nanocontacts with atomically controlled sep…

200 papers

Electrical conductance through various nanocontacts between gold electrodes is studied by using the density functional theory, scalar-relativistic pseudopotentials, generalized gradient approximation for the exchange-correlation energy and…

Materials Science · Physics 2009-11-13 O. Lopez-Acevedo , D. Koudela , H. Häkkinen

The continuing miniaturization of microelectronics raises the prospect of nanometre-scale devices with mechanical and electrical properties that are qualitatively different from those at larger dimensions. The investigation of these…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 A. I. Yanson , G. Rubio Bollinger , H. E. van den Brom , N. Agrait , J. M. van Ruitenbeek

In the presence of matter there is no fundamental limit preventing confinement of visible light even down to atomic scales. Achieving such confinement and the corresponding intensity enhancement inevitably requires simultaneous control over…

We report a new template electroplating method for fabricating reversible atomic contacts between a single nanowire and a macroscopic contact pad. In comparison to typical template methods using a standing-alone anode, we directly evaporate…

Materials Science · Physics 2007-05-23 Zuxin Ye , Wenhao Wu

A new form of gold nanobridges has been recently observed in ultrahigh-vacuum experiments, where the gold atoms rearrange to build helical nanotubes, akin in some respects to carbon nanotubes. The good reproducibility of these wires and…

Mesoscale and Nanoscale Physics · Physics 2011-11-03 Miriam del Valle , Carlos Tejedor , Gianaurelio Cuniberti

Nano-size objects like metal clusters present an ideal system for the study of quantum phenomena and for constructing practical quantum devices. Integrating these small objects in a macroscopic circuit is, however, a difficult task. So far…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Roman Krahne , Tali Dadosh , Amir Yacoby , Hadas Shtrikman , Joseph Sperling , Israel Bar-Joseph

We report a simple and reproducible method to fabricate two metallic electrodes made of different metals with a nanometer-sized gap. These electrodes are fabricated by defining a pair of gold electrodes lithographically and…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 Mandar M. Deshmukh , Amy L. Prieto , Qian Gu , Hongkun Park

We develop a robust and versatile platform to define nanostructures at oxide interfaces via patterned top gates. Using LaAlO$_3$/SrTiO$_3$ as a model system, we demonstrate controllable electrostatic confinement of electrons to nanoscale…

Mesoscale and Nanoscale Physics · Physics 2015-04-10 Srijit Goswami , Emre Mulazimoglu , Lieven M. K. Vandersypen , Andrea D. Caviglia

By merging bottom-up and top-down strategies we tailor graphene's electronic properties within nanometer accuracy, which opens up the possibility to design optical and plasmonic circuitries at will. In a first step, graphene electronic…

Mesoscale and Nanoscale Physics · Physics 2020-09-29 A. J. Martínez-Galera , I. Brihuega , A. Gutiérrez-Rubio , T. Stauber , J. M. Gómez-Rodríguez

Functionalization of nanoporous metallic materials enables the tailoring of surface chemistry and morphology in nanostructured materials, optimising their performance for electrocatalytic and sensor applications. Liquid phase chemical…

We computationally investigate the wave propagation characteristics of nanoscopic granular crystals composed of one-dimensionally arrayed gold nanoparticles using molecular dynamics simulation. We examine two basic configurations, i.e.…

Mesoscale and Nanoscale Physics · Physics 2017-02-06 Bowen Zheng , Jun Xu

There is a great interest in the scientific community to perform calorimetry on samples having mass in the nanogram range. A detailed knowledge of the energy (heat) exchange in the fast growing family of micro- and nano-systems could…

Applied Physics · Physics 2021-12-02 S. Veronesi , T. Papa , Y. Murata , S. Heun

Overcoming the limitations of current nanofabrication techniques to achieve nanoscale feature sizes is essential for achieving new regimes of light-matter interactions at extreme frequencies and length scales. Here, we demonstrate a…

We present results on electromigrated Au nanojunctions broken near the conductance quantum $77.5 \mu$S. At room temperature we find that wires, initially narrowed by an actively-controlled electromigration technique down to a few…

Materials Science · Physics 2007-05-23 K. O'Neill , E. A. Osorio , H. S. J. van der Zant

In solid-state nanopores, achieving reliable control over pore aperture opening and closing (gating) remains a major challenge. Gating can be driven by the applied voltage involving electrically tunable chemical reactions, achieved by…

The realization of single-molecule electronic devices, in which a nanometer-scale molecule is connected to macroscopic leads, requires the reproducible production of highly ordered nanoscale gaps in which a molecule of interest is…

Mesoscale and Nanoscale Physics · Physics 2009-05-08 Sujit S. Datta , Douglas R. Strachan , A. T. Charlie Johnson

We report first observation of photon tunneling gated by light at a different wavelength in an artificially created array of nanometer scale cylindrical channels in a thick gold film. Polarization properties of gated light provide strong…

Strongly Correlated Electrons · Physics 2009-11-07 I. I. Smolyaninov , A. V. Zayats , A. Stanishevsky , C. C. Davis

A nanofabrication process for realizing optical nanoantennas carved from a single-crystal gold plate is presented in this communication. The method relies on synthesizing two-dimensional micron-size gold crystals followed by the dry etching…

Metal nanowires exhibit a number of interesting properties: their electrical conductance is quantized, their shot-noise is suppressed by the Pauli principle, and they are remarkably strong and stable. We show that many of these properties…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 C. A. Stafford

We have fabricated pairs of platinum electrodes with separation between 20 and 3.5 nm. Our technique combines electron beam lithography and chemical electrodeposition. We show that the measurement of the conductance between the two…

Materials Science · Physics 2009-11-10 Y. -V. Kervennic , H. S. J. Van der Zant , A. F. Morpurgo , L. Gurevich , L. P. Kouwenhoven