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Lifetime of Two-Dimensional Electrons Measured by Tunneling Spectroscopy

S. Q. Murphy·J. P. Eisenstein·L. N. Pfeiffer·K. W. West
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Abstract

For electrons tunneling between parallel two-dimensional electron systems, conservation of in-plane momentum produces sharply resonant current-voltage characteristics and provides a uniquely sensitive probe of the underlying electronic spectral functions. We report here the application of this technique to accurate measurements of the temperature dependence of the electron-electron scattering rate in clean two-dimensional systems. Our results are in qualitative agreement with existing calculations.

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S. Q. Murphy, J. P. Eisenstein, L. N. Pfeiffer, K. W. West. 1995-06-09. Lifetime of Two-Dimensional Electrons Measured by Tunneling Spectroscopy. https://doi.org/10.1103/physrevb.52.14825

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