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Electrically driven on-chip electron sources that do not need to be heated have been long pursued because the current thermionic electron sources show the problems of high power consumption, slow temporal response, bulky size, etc., but…

Applied Physics · Physics 2018-07-05 Gongtao Wu , Zhiwei Li , Zhiqiang Tang , Dapeng Wei , Gengmin Zhang , Qing Chen , Lian-Mao Peng , Xianlong Wei

Current approaches for electric power generation from nanoscale conducting or semi-conducting layers in contact with moving aqueous droplets are promising as they show efficiencies of around 30 percent, yet, even the most successful ones…

Nitrate is an important pollutant in drinking water worldwide, and a number of methods exist for the removal of nitrate from water including ion exchange and reverse osmosis. However, these approaches suffer from a variety of disadvantages…

Chemical Physics · Physics 2017-06-20 James W. Palko , Diego I. Oyarzun , Byunghang Ha , Michael Stadermann , Juan G. Santiago

We report on the experimental observation of interatomic Coulombic decay (ICD) in pure $^4$He nanoclusters of mean sizes between $N \approx$ 5000 and 30000 and the subsequent scattering of energetic He$^+$ fragments inside the neutral…

We produce large numbers of low-energy ions by photoionization of laser-cooled atoms inside a surface-electrode-based Paul trap. The isotope-selective trap loading rate of $4\times10^{5}$ Yb$^{+}$ ions/s exceeds that attained by…

Atomic Physics · Physics 2009-11-13 Marko Cetina , Andrew Grier , Jonathan Campbell , Isaac Chuang , Vladan Vuletic

The cutting of single-walled carbon nanotubes by an 80 keV electron beam catalyzed by nickel clusters is imaged in situ using aberration-corrected high-resolution transmission electron microscopy. Extensive molecular dynamics simulations…

This article studies the photodetachment of a single electron anion near an attractive center. Both the differential and total photodetachment cross section are analysed. We obtain the electron flux crossing through a spherical detector…

Atomic Physics · Physics 2014-11-26 X. P. You , M. L. Du

The conversion of neutral nitrogen-vacancy centers to negatively charged nitrogen-vacancy centers is demonstrated for centers created by ion implantation and annealing in high-purity diamond. Conversion occurs with surface exposure to an…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 K. -M. C. Fu , C. Santori , P. E. Barclay , R. G. Beausoleil

Fragile quantum effects such as single electron charging in quantum dots or macroscopic coherent tunneling in superconducting junctions are the basis of modern quantum technologies. These phenomena can only be observed in devices where the…

Mesoscale and Nanoscale Physics · Physics 2020-12-02 Matthew Sarsby , Nikolai Yurttagül , Attila Geresdi

Electrically-driven light emission from carbon nanotubes could be exploited in nano-scale lasers and single-photon sources, and has therefore been the focus of much research. However, to date, high electric fields and currents have been…

Mesoscale and Nanoscale Physics · Physics 2010-05-03 Thomas Mueller , Megumi Kinoshita , Mathias Steiner , Vasili Perebeinos , Ageeth A. Bol , Damon B. Farmer , Phaedon Avouris

The charge topology in the fragmentation of $^{10}$C nuclei in a track nuclear emulsion at an energy of 1.2 GeV per nucleon is studied. In the coherent dissociation of $^{10}$C nuclei, about 82% of events are associated with the channel…

We demonstrate the use of high power diode laser stacks to photodetach fast hydrogen and carbon anions and produce ground term neutral atomic beams. We achieve photodetachment efficiencies of $\sim$7.4\% for H$^-$ at a beam energy of…

Instrumentation and Detectors · Physics 2015-12-09 A. P. O'Connor , H. Bruhns , F. Grussie , T. P. Koenning , K. A. Miller , N. de Ruette , J. Stützel , D. W. Savin , X. Urbain , H. Kreckel

A first-principle theoretical approach to study the process of radiative electron attachment is developed and applied to the negative molecular ions CN$^-$, C$_4$H$^-$, and C$_2$H$^-$. Among these anions, the first two have already been…

Exposure to beams of low energy electrons (2 to 30 keV) in a scanning electron microscope locally induces formation of NV-centers without thermal annealing in diamonds that have been implanted with nitrogen ions. We find that non-thermal,…

Materials Science · Physics 2015-06-03 Julian Schwartz , Shaul Aloni , D. Frank Ogletree , Thomas Schenkel

Electro-thermal poling experiments were carried out on a bioactive glass, and the kinetics of the Na+ ion depletion layer formation under the anode was studied in-situ by means of ac impedance spectroscopy. One important finding is a linear…

Materials Science · Physics 2008-10-03 C. R. Mariappan , B. Roling

Electron removal in collisions of alpha particles with neon dimers is studied using an independent-atom-independent-electron model based on the semiclassical approximation of heavy-particle collision physics. The dimer is assumed to be…

Atomic Physics · Physics 2022-07-06 Tom Kirchner

We have investigated atom-nanotube van der Waals (vdW) coupling in atomically doped carbon nanotubes (CNs). Our approach is based on the perturbation theory for degenerated atomic levels, thus accounting for both weak and strong…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 I. V. Bondarev , Ph. Lambin

By means of a Monte Carlo cascade method, to account for the rescattering of the outgoing nucleon, we study the charged and neutral current inclusive one nucleon knockout reactions off nuclei induced by neutrinos. The nucleon emission…

High Energy Physics - Phenomenology · Physics 2011-03-17 J. Nieves , M. Valverde , M. J. Vicente Vacas

We demonstrate the phenomenon of induced-charge capacitive deionization (ICCDI) that occurs around a porous and conducting particle immersed in an electrolyte, under the action of an external electric field. The external electric field…

Fluid Dynamics · Physics 2016-12-21 S. Rubin , M. E. Suss , P. M. Biesheuvel , M. Bercovici

Nanoconfinement reduces the favorable hydration free energies of single ions, which is correlated with ion rejection and modified chemical reactivity in water-filled nanopores. Many factors contribute to the magnitude of the observed…

Soft Condensed Matter · Physics 2026-03-16 Kevin Leung