English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Electrical conductivity of dry, slow cooled (AgPO$_3$)$_{1-x}$(AgI)$_x$glasses is examined as a function of temperature, frequency and glasscomposition. From these data compositional trends in activation energy forconductivity E$_A$(x), Coulomb energy E$_c$(x) for Ag$^+$ ion creation,Kohlrausch stretched exponent $\beta$(x), low frequency ($\varepsilon_s$(x))and high-frequency ($\varepsilon_\infty$(x)) permittivity are deduced. Allparameters except E$_c$(x) display two compositional thresholds, one near thestress transition, x = x$_c$(1)= 9%, and the other near the rigiditytransition, x = x$_c$(2)= 38% of the alloyed glass network. These elastic phasetransitions were identified in modulated- DSC, IR reflectance and Ramanscattering experiments earlier. A self-organized ion hopping model (SIHM) of aparent electrolyte system is developed that self-consistently incorporatesmechanical constraints due to chemical bonding with carrier concentrations andmobility. The model predicts the observed compositional variation of$\sigma$(x), including the observation of a step-like jump when glasses enterthe Intermediate Phase at x$>$x$_c$(1), and an exponential increase whenglasses become flexible at x$>$x$_c$(2). Since E$_c$ is found to be smallcompared to network strain energy (E$_s$), we conclude that free carrierconcentrations are close to nominal AgI concentrations, and that fast-ionconduction is driven largely by changes in carrier mobility induced by anelastic softening of network structure.

Fast-ion conduction and flexibility and rigidity of solid electrolyte glasses