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arXiv · 1209.2767

Electron Transport in InAs-InAlAs Core-Shell Nanowires

Gregory W. Holloway·Yipu Song·Chris M. Haapamaki·Ray R. LaPierre·Jonathan Baugh
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Abstract

Evidence is given for the effectiveness of InAs surface passivation by the growth of an epitaxial InAlAs shell. The electron mobility is measured as a function of temperature for both core-shell and unpassivated nanowires, with the core-shell nanowires showing a monotonic increase in mobility as temperature is lowered, in contrast to a turnover in mobility seen for the unpassivated nanowires. We argue that this signifies a reduction in low temperature ionized impurity scattering for the passivated nanowires, implying a reduction in surface states.

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Gregory W. Holloway, Yipu Song, Chris M. Haapamaki, Ray R. LaPierre, Jonathan Baugh. 2012-09-13. Electron Transport in InAs-InAlAs Core-Shell Nanowires. https://doi.org/10.1063/1.4788742

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