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Now showing items 621-630 of 2111
Buckling of a linear chain of hard spheres in a harmonic confining potential: Numerical and analytical results for low and high compression
(2020)
We extend a previous analysis of the buckling properties of a linear chain of hard spheres between hard walls under transverse harmonic confinement. Two regimes are distinguished—low compression, for which the entire chain ...
Femtosecond laser ablation of metals
(Trinity College (Dublin, Ireland). School of Physics, 2015)
Femtosecond laser ablation of metals and dielectrics is currently very topical due to its new and distinctive ablation process and the growing number of applications. The ablation process is rather complex and results in ...
Deceleration and dispersion of large-scale coronal bright fronts
(2011)
Abstract: Context. One of the most dramatic manifestations of solar activity are large-scale coronal bright fronts (CBFs) observed in extreme ultraviolet (EUV) images of the solar atmosphere. To date, the energetics and ...
Planar nanowire arrays formed by atomic-terrace low-angle shadowing
(2008)
A relatively simple method for preparation of planar nanowire arrays on vicinal substrates by molecular beam epitaxy is presented. The atomic step-and-terrace morphology of vicinal substrates is used to produce a shadowing ...
Weak ferromagnetism and magnetoelectric coupling in bismuth ferrite
(American Physical Society, 2005)
We analyze the coupling between the ferroelectric and magnetic order parameters in the magnetoelectric multiferroic BiFeO3 using density functional theory within the local spin density approximation (LSDA) and the LSDA+U ...
Electrically driven phase transition inmagnetite nanostructurers
(NATURE PUBLISHING GROUP, 2008-02)
Magnetite (Fe3O4), an archetypal transition-metal oxide, has been used for thousands of years, from lodestones in primitive compasses(1) to a candidate material for magnetoelectronic devices(2). In 1939, Verwey(3) found ...
Surface enhanced Raman scattering of monolayer MX<inf>2</inf> with metallic nano particles
(2016)
Monolayer transition metal dichalcogenides MX2 (M = Mo, W; X = S) exhibit remarkable electronic and optical properties, making them candidates for application within flexible nano-optoelectronics. The ability to achieve a ...
Electric Field Control of Valence Tautomeric Interconversion in Cobalt Dioxolene
(2011)
We demonstrate that the critical temperature for valence tautomeric interconversion in cobalt dioxolene complexes can be significantly changed when a static electric field is applied to the molecule. This is achieved by ...
Swift heavy ion irradiation-induced modifications in structural, magnetic and electrical transport properties of epitaxial magnetite thin films
(2006)
The effect of swift heavy ion SHI irradiation 190 MeV Ag on structural, electrical transport and
magnetic properties of epitaxial magnetite Fe3O4 thin films thickness 70 nm grown on
MgO 100 oriented substrate ...