J. P. Mendez, D. Mamaluy, Xujiao Gao, E. Anderson, Deanna Campbell, J. Ivie, T. Lu, S. Schmucker, S. Misra
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引用次数: 3
Abstract
We employ a fully charge self-consistent quantum transport formalism, together with a heuristic elastic scattering model, to study the local density of state (LDOS) and the conductive properties of Si:P δ-layer wires at the cryogenic temperature of 4 K. The simulations allow us to explain the origin of shallow conducting sub-bands, recently observed in high resolution angle-resolved photoemission spectroscopy experiments. Our LDOS analysis shows the free electrons are spatially separated in layers with different average kinetic energies, which, along with elastic scattering, must be accounted for to reproduce the sheet resistance values obtained over a wide range of the δ-layer donor densities.
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