148 citations · 225 across the 10 of their papers we have counts for
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Variation of the hopping exponent in disordered silicon MOSFETs
T. Ferrus, R. George, C. H. W. Barnes +3
We observe a complex change in the hopping exponent value from 1/2 to 1/3 as a function of disorder strength and electron density in a sodium-doped silicon MOSFET. The disorder was…
Magnetoconductivity of Hubbard bands induced in Silicon MOSFETs
T. Ferrus, R. George, C. H. W. Barnes +3
Sodium impurities are diffused electrically to the oxide-semiconductor interface of a silicon MOSFET to create an impurity band. At low temperature and at low electron density, the…
Activation mechanisms in sodium-doped Silicon MOSFETs
T. Ferrus, R. George, C. H. W. Barnes +3
We have studied the temperature dependence of the conductivity of a silicon MOSFET containing sodium ions in the oxide above 20 K. We find the impurity band resulting from the pres…
Evidence for multiple impurity bands in sodium-doped silicon MOSFETs
T. Ferrus, R. George, C. H. W. Barnes +3
We report measurements of the temperature-dependent conductivity in a silicon metal-oxide-semiconductor field-effect transistor that contains sodium impurities in the oxide layer.…
Many-body spin related phenomena in ultra-low-disorder quantum wires
D. J. Reilly, G. R. Facer, A. S. Dzurak +7
Zero length quantum wires (or point contacts) exhibit unexplained conductance structure close to 0.7 X 2e^2/h in the absence of an applied magnetic field. We have studied the densi…