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Reversible hydrogen uptake and the metal/dielectric transition make the Mg/MgH$_2$ system a prime candidate for solid state hydrogen storage and dynamic plasmonics. However, high dehydrogenation temperatures and slow dehydrogenation hamper…

It has been recently shown that nanobubbles exhibit a remarkable and unexpected stability. The lifetime of nanobubbles, formed either within liquids or on hydrophobic surfaces, can exceed by more than 10 orders of magnitude the theoretical…

Soft Condensed Matter · Physics 2019-05-14 Caroline Desgranges , Jerome Delhommelle

In this work we present the magnetic properties of gold coated FePt nanoparticles and the study of stable aqueous dispersions of FePt@Au and FePt synthesized after ligand exchange with mercaptoundecanoic acid. The particle size determined…

Chemical Physics · Physics 2009-11-24 P. de la Presa , T. Rueda , M. P. Morales , A. Hernando

At ambient pressure, sodium, chlorine, and their only known compound NaCl, have well-understood crystal structures and chemical bonding. Sodium is a nearly-free-electron metal with the bcc structure. Chlorine is a molecular crystal,…

Solid solution effects on the strength of the finest nanocrystalline grain sizes are studied with molecular dynamics simulations of different Cu-based alloys. We find evidence of both solid solution strengthening and softening, with trends…

Materials Science · Physics 2014-08-26 Timothy J. Rupert

Aggregation behavior of particles in nonpolar medium is studied with time-resolved light scattering. At low concentrations of surfactant particles are weakly charged and suspensions are not stable. Suspensions get progressively more stable…

A systematic study of NaxCoO2 (x=0.50 - 0.90) and NaxCoO2 yH(D)2O (x=0.26 - 0.42, y=1.3) has been performed to determine phase stability and the effect of hydration on the structural and superconducting properties of this system. We show…

Superconductivity · Physics 2009-11-10 D. P. Chen , H. C. Chen , A. Maljuk , A. Kulakov , H. Zhang , P. Lemmens , C. T. Lin

We employ a novel Monte Carlo simulation scheme to elucidate the stabilization of neutral colloidal microspheres by means of highly-charged nanoparticles [V. Tohver et al., Proc. Natl. Acad. Sci. U.S.A. 98, 8950 (2001)]. In accordance with…

Soft Condensed Matter · Physics 2009-11-10 Jiwen Liu , Erik Luijten

Elastic constants and sound velocities of nm-order thin films are essential for designing acoustic filters. However, it is difficult to measure them for dielectric thin films. In this study, we use a three-layer structure where a dielectric…

Applied Physics · Physics 2022-01-12 Hiroki Fukuda , Akira Nagakubo , Hirotsugu Ogi

Age hardening induced by the formation of (semi)-coherent precipitate phases is crucial for the processing and final properties of the widely used Al-6000 alloys. Early stages of precipitation are particularly important from the fundamental…

Materials Science · Physics 2017-08-29 Daniele Giofré , Till Junge , W. A. Curtin , Michele Ceriotti

Nanoporous structures play a promising role in the development of nanomechanical, nanoelectrical and biosensing devices. In addition, nanopores can be utilized as chemical and gas sensors. TiO2 is a semiconductor material, which can have a…

Materials Science · Physics 2012-07-30 Subhasish Chatterjee , Miriam Ginzberg , Bonnie Gersten

Transient Grating experiments performed on supercooled LiCl, RH2O solutions with R>6 reveal the existence of a strong, short time, extra signal which superposes to the normal signal observed for the R=6 solution and other glass forming…

Materials Science · Physics 2015-06-15 L. E. Bove , C. Dreyfus , R. Torre , R. M. Pick

Nanofluidics is an emerging field offering innovative solutions for energy harvesting and desalination. The efficiency of these applications depends strongly on liquid-solid slip, arising from a favorable ratio between viscosity and…

Soft Condensed Matter · Physics 2022-08-16 Cecilia Herrero , Gabriele Tocci , Samy Merabia , Laurent Joly

We report on the electrostatic complexation between oppositely charged polymers and inorganic nanoparticles investigated by static and dynamical light scattering. The nanoparticles put under scrutiny were citrate-coated nanocrystals of…

Soft Condensed Matter · Physics 2007-09-10 J. -F. Berret

The focus of this article is based on the aqueous dispersed state properties of inorganic ZnO nanoparticles (average size lessthan or equal to 4 nm), their surface modification and bio-functionalization with folic acid at physiological pH ~…

Materials Science · Physics 2013-12-05 Sreetama Dutta , Bichitra Nandi Ganguly

We are concerned with the stability of thin liquid films overflowing single microstructures with sharp corners. The microstructures were of rectangular and triangular shape. Their heights and widths were 0.25, 0.5 and 0.75 times the Nusselt…

Fluid Dynamics · Physics 2020-09-09 Henning Bonart , Johannes Jung , Jens-Uwe Repke

Transparent Al2O3 ceramics have attracted considerable interest for use in a wide range of optical, electronic and structural applications. The fabrication of these ceramics using powder metallurgy processes requires the development of…

Materials Science · Physics 2017-09-14 G. Sh. Boltachev , K. E. Lukyashin , A. L. Maximenko , R. N. Maksimov , V. A. Shitov , M. B. Shtern

Water wetting on a hydrophobic surface at ambient conditions is disallowed by the nonpolar nature of the surface and high vapor pressure of water. However, the presence of sub-millimeter sized hydrophilic patches allows the waxy wings of…

Mesoscale and Nanoscale Physics · Physics 2013-07-11 Yi Zheng , C. L. Su , Jiong Lu , Kian Ping Loh

Advection-diffusion coupling can enhance particle and solute dispersion by orders of magnitude as compared to pure diffusion, with a steady state being reached for confined flow regions such as a nanopore or blood vessel. Here, by using…

This study systematically investigates the microstructural evolution of nanoparticle-based CuO, WO$_3$, and composite 'CuO-WO$_3$' thin films induced by their post-deposition annealing. The films were reactively deposited using a…