Microwave-induced forward scattering and Luttinger liquid interferences in magnetically confined quantum wires

Reference:

Nogaret, A., Portal, J. C., Beere, H. E., Ritchie, D. A. and Phillips, C., 2008. Microwave-induced forward scattering and Luttinger liquid interferences in magnetically confined quantum wires. Low Temperature Physics, 34 (10), pp. 853-857.

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Official URL:

http://dx.doi.org/10.1063/1.3006392

Abstract

We report on the photoresistance of a magnetic quantum wire obtained by applying a gradient of magnetic field to a two-dimensional electron gas. Electron transmission through the magnetic wire increases by an order of magnitude under microwave irradiation and exhibits frequency-dependent magneto-oscillations as a function of the in-plane magnetic field. Both results are fully consistent with microwave-coupled Luttinger liquid edge channels which interfere at two pinning sites in the fashion of a Mach-Zehnder interferometer.

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