Microwave induced forward scattering in a multi-channel magnetically confined quantum wire
Nogaret, A., Portal, J. C., Beere, H. E., Ritchie, D. A. and Phillips, C., 2009. Microwave induced forward scattering in a multi-channel magnetically confined quantum wire. In: Caldas, M. J. and Studart, N., eds. Physics of Semiconductors.Vol. 1199. Melville: American Institute of Physics, pp. 345-346. (AIP Conference Proceedings)
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We report quantum interferences in a multi-channel Luttinger liquid coupled by a microwave field at two pinning sites where electrons experience forward scattering. We use a magnetic field to tune the phase difference between charge density waves propagating in each channel. The interferences give a field dependent transmission through the second pining site which we detect through oscillations in the magneto-resistance. Experimental data fit quantitatively the response of the Luttinger liquid confined by a spatially varying magnetic field and yield the distance between pining centres (11 mu m) as the only adjustment parameter.
|Item Type||Book Sections|
|Creators||Nogaret, A., Portal, J. C., Beere, H. E., Ritchie, D. A. and Phillips, C.|
|Editors||Caldas, M. J.and Studart, N.|
|Departments||Faculty of Science > Physics|
|Additional Information||29th International Conference on Physics of Semiconductors. 27 July - 1 August 2008. Rio de Janeiro, Brazil.|
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