Results 11 to 20 of about 2,272,235 (222)

Dislocation loop formation by swift heavy ion irradiation of metals [PDF]

Journal of Physics: Condensed Matter, 2017
A coupled two-temperature, molecular dynamics methodology is used to simulate the structural evolution of bcc metals (Fe and W) and fcc metals (Cu and Ni) following irradiation by swift heavy ions. Electronic temperature dependent electronic specific heat capacities and electron-phonon coupling strengths are used to capture the full effects of the ...
Khara, Galvin S., Murphy, Samuel T., Duffy, Dorothy M.   +2 more
core   +9 more sources

Swift Heavy Ion Irradiation of Cobalt Nanoparticles

AIP Conference Proceedings, 2009
It is well known that the electronic energy loss released by swift heavy ions can cause considerable atomic movement in various solids. Here, we present a study of the effects of swift heavy ion irradiation on Co nanoparticles embedded within a silica host matrix. The evolution of the Co nanoparticle crystal phase, structural properties, shape and size
D. J. Sprouster, R. Giulian, C. S. Schnohr, P. Kluth, L. L. Araujo, A. P. Byrne, G. J. Foran, M. C. Ridgway, Rogério Magalhaes Paniago   +8 more
core   +4 more sources

Characterization of ion track morphology formed by swift heavy ion irradiation in silicon oxynitride films [PDF]

EPJ Web of Conferences, 2015
Amorphous silicon oxynitride (SiOxNy) possess interesting optical and mechanical properties. Here, we present direct evidence for the formation of ion tracks in 1 µm thick silicon oxynitride of different stoichiometries.
Mota–Santiago P., Schauries D., Nadzri A., Vora K., Ridgway M. C., Kluth P.   +5 more
doaj   +2 more sources

Tuning the conductivity of vanadium dioxide films on silicon by swift heavy ion irradiation

AIP Advances, 2011
We demonstrate the generation of a persistent conductivity increase in vanadium dioxide thin films grown on single crystal silicon by irradiation with 1 GeV 238U swift heavy ions at room temperature.
H. Hofsäss, P. Ehrhardt, H.-G. Gehrke, M. Brötzmann, U. Vetter, K. Zhang, J. Krauser, C. Trautmann, C. Ko, S. Ramanathan   +9 more
doaj   +2 more sources

Amorphization of nanocrystalline monoclinic ZrO2 by swift heavy ion irradiation

Physical Chemistry Chemical Physics, 2012
Bulk ZrO(2) polymorphs generally have an extremely high amorphization tolerance upon low energy ion and swift heavy ion irradiation in which ballistic interaction and ionization radiation dominate the ion-solid interaction, respectively. However, under very high-energy irradiation by 1.33 GeV U-238, nanocrystalline (40-50 nm) monoclinic ZrO(2) can be ...
Fengyuan, Lu, Jianwei, Wang, Maik, Lang, Marcel, Toulemonde, Fereydoon, Namavar, Christina, Trautmann, Jiaming, Zhang, Rodney C, Ewing, Jie, Lian   +8 more
openaire   +3 more sources

Characterization of swift heavy ion irradiation damage in ceria

Journal of Materials Research, 2015
Abstract
Yablinsky, Clarissa A., Devanathan, Ram, Pakarinen, Janne, Gan, Jian, Severin, Daniel, Trautmann, Christina, Allen, Todd R.   +6 more
openaire   +4 more sources

Swift Heavy Ion Irradiation on Quasicrystals

MRS Proceedings, 2003
ABSTRACTThe present level of understanding of the effects of irradiation of quasicrystalline targets with swift heavy ions has been reviewed here. The results of systematic deposition of large amount of energy densities (12 keV/nm < (dE/dx)e < 40 keV/nm) in Al-Cu-Fe based system are discussed in terms of resistivity measurements (in-situ ...
Ratnamala Chatterjee
openaire   +2 more sources

Tracks and Voids in Amorphous Ge Induced by Swift Heavy-Ion Irradiation [PDF]

Physical Review Letters, 2013
Ion tracks formed in amorphous Ge by swift heavy-ion irradiation have been identified with experiment and modeling to yield unambiguous evidence of tracks in an amorphous semiconductor. Their underdense core and overdense shell result from quenched-in radially outward material flow.
Ridgway, M. C., Bierschenk, T., Giulian, R., Afra, B., Rodriguez, M. D., Araujo, L. L., Byrne, A. P., Kirby, N., Pakarinen, O. H., Djurabekova, F., Nordlund, K., Schleberger, M., Osmani, O., Medvedev, N., Rethfeld, B., Kluth, P.   +15 more
core   +8 more sources

Refractive index engineering through swift heavy ion irradiation of LiNbO₃ crystal towards improved light guidance. [PDF]

Sci Rep, 2017
Swift heavy ion irradiation has been widely used to modify refractive indices of optical materials for waveguide fabrication. In this work, we propose refractive index engineering by swift heavy ion (Ar) irradiation via electronic energy deposition to ...
Chen C, Pang L, Lu Q, Wang L, Tan Y, Wang Z, Chen F.   +6 more
europepmc   +2 more sources

Comprehensive Understanding of Hillocks and Ion Tracks in Ceramics Irradiated with Swift Heavy Ions

Quantum Beam Science, 2020
Amorphizable ceramics (LiNbO3, ZrSiO4, and Gd3Ga5O12) were irradiated with 200 MeV Au ions at an oblique incidence angle, and the as-irradiated samples were observed by transmission electron microscopy (TEM).
Norito Ishikawa, Tomitsugu Taguchi, Hiroaki Ogawa   +2 more
doaj   +1 more source