Electron transport inLa100−xAlxmetallic glasses

'taxonomy' of Electron Glasses

We report measurements of the real and imaginary parts of the AC conductivity in the quantum limit, ω > kBT of insulating nominally uncompensated n-type silicon. The observed frequency dependence shows evidence for a crossover from interacting Coulomb glass-like behavior at lower energies to non-interacting Fermi glass-like behavior at higher energies across a broad doping range. The crossover ...

1Õf noise in electron glasses

We show that 1/f noise is produced in a three-dimensional electron glass by charge fluctuations due to electron hopping between isolated sites and a percolating network at low-temperatures. The low-frequency noise spectrum goes as v with a slightly larger than 1. This result together with the temperature dependence of a and the noise amplitude are in good agreement with the recent experiments. ...

Universal frequency-dependent conduction of electron glasses

Fluctuating mobility generation and transport in glasses.

In the context of the random first order transition theory we use an extended mode coupling theory of the glass transition that includes activated events to account for spatiotemporal structures in rejuvenating glasses. We numerically solve fluctuating dynamical equations for mobility and fictive temperature fields which capture both mobility generation through activated events and facilitation...

Paleoclassical electron heat transport

It has been hypothesized that radial electron heat transport in low collisionality, current-carrying magnetically-confined toroidal plasmas results from paleoclassical Coulomb collision processes (parallel electron heat conduction and magnetic field diffusion). In such plasmas the electron temperature equilibrates along magnetic field lines a long length L, which is the minimum of the electron ...