Scattering-Assisted Tunneling: Energy Dependence, Magnetic Field Dependence, and Use as an External Probe of Two-Dimensional Transport

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Scattering-Assisted Tunneling: Energy Dependence, Magnetic Field Dependence, and Use as an External Probe of Two-Dimensional Transport

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Title: Scattering-Assisted Tunneling: Energy Dependence, Magnetic Field Dependence, and Use as an External Probe of Two-Dimensional Transport
Author: Russell, Kasey Joe; Capasso, Federico; Narayanamurti, Venkatesh; Lu, H.; Zide, J. M. O.; Gossard, A. C.

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Citation: Russell, Kasey Joe, Federico Capasso, Venkatesh Narayanamurti, H. Lu, J. M. O Zide, and A. C. Gossard. 2010. Scattering-assisted tunneling: energy dependence, magnetic field dependence, and use as an external probe of two-dimensional transport. Physical Review B 82(11): 115322.
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Abstract: For more than three decades, research on tunneling through planar barriers has focused principally on processes that conserve momentum parallel to the barrier. Here we investigate transport in which scattering destroys lateral momentum conservation and greatly enhances the tunneling probability. We have measured its energy dependence using capacitance spectroscopy, and we show that for electrons confined in a quantum well, the scattering enhancement can be quenched in an applied magnetic field, enabling this mechanism to function as an external probe of the origin of the quantum Hall effect.
Published Version: doi:10.1103/PhysRevB.82.115322
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:8896227

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  • FAS Scholarly Articles [7362]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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