disorder. … Coulomb interactions. Field-enhanced conductivity in Electron-Glasses Suppression of Electron-Electron inelastic scattering in Anderson Insulators. Anderson insulator…. e. e. x. x. G(T=0)>0 Metal. G(T=0)=0 Insulator. = E lectron-Glass. … quench the sample from high T ….
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… Coulomb interactions
Field-enhanced conductivity in Electron-Glasses
Suppression of Electron-Electron inelastic scattering in Anderson Insulators
The basic phenomena
allsamples are in the 2D hopping regime
…and allare crystalline indium-oxide - In2O3-x
…all experiments done at T=4K
system goes towards lower energy
…apply non-ohmic field F…(high voltage)
…or raise bath-temperature by DT…
…F and DT have qualitatively similar effect …
… absorption however, DOES depend on f...
DG0is the samefor allf
…and F is keptfor the same time for allf
…what determines the cross-over frequency ?
g(T) is the rate heat is removed from the system
Celis the electron heat-capacity
N(0)=21045 J-1 m-3
V(6.1 MW)=0.3 V (rms)
V(12.5 MW)=1 V (rms)
g(6.1 MW)=3.5·105 Hz
g(12.5 MW)=7.1·105 Hz
gin (e-e)R(for weak disorder)
…the “memory-Dip (MD )
…MD shape may be used as a thermometer...
…applied high frequency F...
…applied lowfrequency F...