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Displaying 426 - 450 of 2769

Effect of Tooth-Bound Fluoride on Enamel Demineralization/Remineralization in Vitro

May 1, 1999
Author(s)
Shozo Takagi, N S. Liao, Laurence C. Chow
… control group that received no treatment, (2) acidulated phosphate fluoride (APF) group that received 5 cycles of a 4 … in the RS for 2 days (RS changed daily), and (3) dicalcium phosphate dihydrate (DCPD) -APF group that received 5 cycles … acidulated phosphate fluoride, dicalcium phosphate dihydrate, …

Measurements and Modeling of Ion Energy Distributions in High-Density, Radio-Frequency Biased CF 4 Discharges

May 1, 2002
Author(s)
Mark A. Sobolewski, Yicheng Wang, A N. Goyette
… Models of ion dynamics in radio-frequency (rf) biased, high-density plasma sheaths are needed to predict ion bombardment energies in plasma simulations. To test these models, we have measured ion energy distributions (IEDs) in pure CF 4 discharges at … CF4, high-density plasma, inductively coupled discharge, ion energy distribution, plasma processing, radio-frequency …

Equilibration of the planar modes of ultracold two-dimensional ion crystals in a Penning trap

May 11, 2020
Author(s)
Chen Tang, Athreya Shankar, Daniel Dubin, Dominic Meiser, Scott Parker, John J. Bollinger
… direct numerical simulations of ultracold two-dimensional ion crystals in a Penning trap with a rotating wall. The … in-plane modes and improve the performance of single plane ion crystals for quantum information processing. … of the planar modes of ultracold two-dimensional ion crystals in a Penning trap …

Spectroscopic analysis of M- and N-intrashell transitions in Co-like to Na-like Yb ions

December 19, 2021
Author(s)
Yuri Ralchenko, Dipti Goyal, Roshani Silwal, Endre Takacs, Joan Dreiling, Samuel Sanders, Amy Gall, Hemalatha Rudramadevi, John Gillaspy
… spectra from Co-like Yb$^43+}$ through Na-like Yb$^59+}$ ions produced in an electron beam ion trap (EBIT) at the … and magnetic-dipole transitions in the above mentioned ions were identified and discussed. … M- and N-intrashell transitions in Co-like to Na-like Yb ions …

Dynamics of Hydroxyl Anions Promotes Lithium Ion Conduction in Antiperovskite Li 2 OHCl

October 13, 2020
Author(s)
Fei Wang, Hayden Evans, Kwangnam Kim, Liang Yin, Yiliang Li, Ping-Chun Tsai, Jue Liu, Saul H. Lapidus, Craig Brown, Donald J. Siegel, Yet-Ming Chiang
… been reported, but in which the atomic-level mechanism of ion migration is unclear. The stable phase is highly … together show conclusively that the high lithium ion conductivity of cubic Li 2 OHCl is correlated to … Ion conductor, plastic crystals, Maximum entropy method, …

Sodium Carbazolide and Derivatives as Solid-State Electrolytes for Sodium-Ion Batteries

June 26, 2023
Author(s)
Yang Yu, Jintao Wang, Zhaoxian Qin, Yingtong Lv, Qijun Pei, Khai C. Tan, Tengfei Zhang, Anan Wu, Hui Wu, Andrew S. Lipton, Ping Chen
… (SSEs) could effectively solve the safety issues in sodium-ion batteries. Efforts on seeking novel solid-state … fast ion conduction, electrolyte, sodium-ion battery, metal hydride … and Derivatives as Solid-State Electrolytes for Sodium-Ion Batteries …

Effects of Argon Gas-Cluster Ion Beam Processing on Surface Roughness, Crystalline Orientation Texture, Magnetic, and Giant Magnetoresistance Properties of A-Fe 2 O 3 Bottom Spin-Valves

October 12, 2021
Author(s)
S Bae, J H. Judy, P J. Chen, L Gan, William F. Egelhoff Jr., J Hautala
… The effects of gas-cluster ion beam (GCIB) processing on the surface roughness, … argon gas cluster, giant magnetoresistance, ion beam processing … Effects of Argon Gas-Cluster Ion Beam Processing on Surface Roughness, Crystalline …

High-Fidelity Quantum Control Using 9Be+ Ion Crystals in a Penning Trap

August 19, 2009
Author(s)
Michael J. Biercuk, Hermann Uys, Aaron Vandevender, Nobuyasu Shiga, Wayne M. Itano, John J. Bollinger
… We provide an introduction to the use of ion crystals in a Penning trap for experiments in quantum … arrays. The structure and dimensionality of the resulting ion crystals may be tuned using a combination of control … potentials. We discuss the use of two-dimensional 9Be+ ion crystals for experimental tests of quantum control …

Measurements of the Linear Polarization of Satellite Transitions from Li- and Be- like Ar Ions

June 18, 2020
Author(s)
Amy Gall, Dipti Goyal, Sean W. Buechele, Samuel C. Sanders, Roshani Silwal, Csilla Szabo-Foster, N Brickhouse, Yuri Ralchenko, Endre A. Takacs
… recombination satellite transitions from Li-like Ar ions, and two blended features from Be-like ions. The spectrometers observed at 90o relative to the … dielectronic recombination, polarization, highly-charged ions … of Satellite Transitions from Li- and Be- like Ar Ions …

Single-qubit-gate error below 10 -4 in a trapped ion

September 14, 2011
Author(s)
Kenton R. Brown, Andrew C. Wilson, Yves Colombe, Christian Ospeklaus, Adam M. Meier, Emanuel H. Knill, Dietrich G. Leibfried, David J. Wineland
… is realized with two hyperfine ground states of a 9Be+ ion trapped above a microfabricated surface-electrode ion trap [5, 6] and manipulated with microwaves applied to … atom, ion, quantum gate, quantum computer, gate error, qubit, … Single-qubit-gate error below 10 -4 in a trapped ion …

Experimental Issues in Coherent Quantum-State Manipulation of Trapped Atomic Ions,

January 1, 1998
Author(s)
David J. Wineland, C Monroe, Wayne M. Itano, Dietrich G. Leibfried, B E. King, D M. Meekhof
… to, the generation of entangled states of trapped atomic ions are examined. As much as possible, state manipulations … potential applications for entangled states of trapped-ions which lie outside the immediate realm of quantum … quantum computation, quantum state engineering, trapped ions …

Quantum information processing with trapped ions

July 25, 2004
Author(s)
Murray D. Barrett, Tobias Schaetz, J Chiaverini, Dietrich Leibfried, Joseph W. Britton, Wayne M. Itano, John D. Jost, Emanuel Knill, C. Langer, R Ozeri, David J. Wineland
… ofmulti-particle entangled states of trapped atomic ions. The experiments reported here, quantum dense coding and … quantum-state engineering, teleportation, trapped ions … Quantum information processing with trapped ions …

Latent Reliability Degradation of Ultra-Thin Oxides after Heavy Ion and Gamma Ray Irradiation

October 18, 2001
Author(s)
Bin Wang, John S. Suehle, Eric M. Vogel, J. R. Conley, C E. Weintraub, A. H. Johnston, J B. Bernstein
… We studied the effects of heavy ion and gamma ray irradiation on radiation-induced leakage … reliability, Time-Dependent Dielectric Breakdown, heavy ion, radiation effects … Reliability Degradation of Ultra-Thin Oxides after Heavy Ion and Gamma Ray Irradiation …

3D Imaging of Diatoms with Ion-abrasion Scanning Electron Microscopy

June 9, 2009
Author(s)
Keana C. Scott, Mark Hildebrand, Sang Kim, Dan Shi, Sriram Subramaniam
… Ion-abrasion scanning electron microscopy (IASEM) takes advantage of focused ion beams to abrade thin sections from the surface of bulk … "Diatom", "Ion-abrasion SEM", "Biomineral structure formation", … 3D Imaging of Diatoms with Ion-abrasion Scanning Electron Microscopy …

Demineralizing Effect of Dental Cements on Human Dentin

November 1, 1998
Author(s)
Y Shimada, Y Kondo, S Inokoshi, J Tagami, Joseph M. Antonucci
… of four kinds of chemically setting cements (zinc phosphate cement, luting glass-ionomer cement, restorative … confocal laser scanning microscopy after use of an argon-ion etching technique. To determine the surface effects of … along the interface tended to be nonuniform. Zinc phosphate cement caused the greatest demineralization of …

Quantum spin dynamics and entanglement generation with hundreds of trapped ions

June 15, 2016
Author(s)
Justin G. Bohnet, Brian C. Sawyer, Joseph W. Britton, Michael L. Wall, A M. Rey, Michael S. Foss-Feig, John J. Bollinger
… and decoherence in open quantum systems. Trapped ions are an established platform for quantum simulation, but only systems with fewer than 20 ions have demonstrated quantum correlations. We benchmark … interaction in two-dimensional arrays of up to 230 9Be+ ions in a Penning trap. We verify entanglement at early times …

Chemical Discrimination of Multilayered Paint Cross Sections for Potential Forensic Applications using Time-of-Flight Secondary Ion Mass Spectrometry

June 15, 2018
Author(s)
Shinichiro N. Muramoto, J Greg Gillen, Eric S. Windsor
… Time-of-flight secondary ion mass spectrometry (ToF-SIMS) equipped with a bismuth imaging source and an argon gas cluster ion beam (GCIB) was used to image polished cross-sections of … of the individual layers was possible after a GCIB sputter ion dose of 7 × 1015 ions/cm2 was applied for the removal of …
Displaying 426 - 450 of 2769
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