Results 31 to 40 of about 846,225 (353)
The role of atomic oxygen concentration in the ionization balance of the lower ionosphere during solar proton events [PDF]
Annales Geophysicae, 2008 The influence of atomic oxygen concentration on the height distribution of the main positive and negative ions and on electron density in the mesosphere is studied for the conditions prevailing during the solar proton event on 17 January 2005.
A. Osepian +3 more
doaj +1 more source
Materials Today, 2003 Abstract Ionic conductors have always provided a fascinating interdisciplinary field of study ever since their discovery by Faraday at the Royal Institution in London over 200 years ago. More recently, and particularly in the past decade, the pace of research has been rapid, driven by the requirements for new clean energy sources, sensors, and high ...
Skinner, Stephen J, Kilner, John A
openaire +1 more source
Frontiers in Astronomy and Space Sciences, 2023 Ionospheric outflow plays an important role in coupling the ionosphere with the solar wind-magnetosphere system. Previous multi-fluid MHD studies explored the global influence of oxygen ions of ionospheric origin (O+) on magnetospheric dynamics.
Yuri A. Omelchenko +6 more
doaj +1 more source
Magnetic anisotropies and general on--site Coulomb interactions in the cuprates [PDF]
, 1995 This paper derives the anisotropic superexchange interactions from a Hubbard model for excitations within the copper 3d band and the oxygen 2p band of the undoped insulating cuprates. We extend the recent calculation of Yildirim et al. [Phys. Rev. B {\bf
A. B. Harris +27 more
core +3 more sources
Oxygen surface exchange kinetics of erbia-stabilized bismuth oxide [PDF]
, 2010 The surface oxygen exchange kinetics of bismuth\ud oxide stabilized with 25 mol% erbia (BE25) has been studied\ud in the temperature and pO2 ranges 773–1,023 K and 0.1–\ud 0.95 atm, respectively, using pulse-response 18O–16O isotope\ud exchange ...
Boukamp, Bernard A. +2 more
core +4 more sources
Acceleration of oxygen ions in the dynamic magnetotail [PDF]
Annales Geophysicae, 2004 The substorm-related acceleration and flux increases of energetic oxygen ions are studied on the basis of test particle orbits in the fields obtained from an MHD simulation of plasmoid formation and ejection and the collapse (dipolarization) of the ...
J. Birn, M. F. Thomsen, M. Hesse
doaj +1 more source
On the Stereochemistry of the Cations in the Doping Block of Superconducting Copper-Oxides
, 1995 Metal-oxygen complexes containing Cu,- Tl-, Hg-, Bi- and Pb-cations are electronically active in superconducting copper-oxides by stabilizing single phases with enhanced $T_c$, whereas other metal-oxygen complexes deteriorate copper-oxide ...
A. R. Bishop +12 more
core +1 more source
Multiband $d-p$ model and self-doping in the electronic structure of Ba$_2$IrO$_4$
, 2016 We introduce and investigate the multiband $d-p$ model describing a IrO$_4$ layer (such as realized in Ba$_2$IrO$_4$) where all $34$ orbitals per unit cell are partly occupied, i.e., $t_{2g}$ and $e_g$ orbitals at iridium and $2p$ orbitals at oxygen ions.
Oleś, Andrzej M. +1 more
core +1 more source
Visualization of Spatial Charge in Thermally Poled Glasses via Nanoparticles Formation
Nanomaterials, 2021 It is shown for the first time that the vacuum poling of soda-lime silicate glass and the subsequent processing of the glass in a melt containing silver ions results in the formation of silver nanoparticles buried in the subanodic region of the glass at ...
Ekaterina Babich +6 more
doaj +1 more source
On the use of electrochemical techniques to monitor free oxide content in molten fluoride media [PDF]
, 2007 The electrochemical behaviour of oxide ions has been studied in fluoride melts(LiF/NaF eutectic) by cyclic voltammetry, square wave voltammetry and chronopotentiometry.
Barin +19 more
core +2 more sources