The role of small-angle electron–electron scattering in transverse magnetic focusing experiment
Abstract
We demonstrate the crucial role of small-angle scattering in transverse magnetic focusing (TMF) in ballistic GaAs/AlGaAs heterostructures. Measurements in various samples show that the role significantly depends on their geometry. We propose a phenomenological model parameterizing this dependence with the angular acceptance of the detecting contact. This model is consistent with the diversity of experimental data and, therefore, enables accurate extraction of the key characteristic of inter-electron (e–e) interaction—the e–e scattering length—from TMF experiment, thus turning it into a uniquely effective tool for studying e–e scattering.
Article Details
Journal Info
Journal of Applied Physics
American Institute of Physics
Authors (7)
Dmitry A. Egorov
Rzhanov Institute of Semiconductor Physics SB RAS 1 , 13 Lavrentiev Ave., Novosibirsk 630090,
Dmitriy A. Pokhabov
Rzhanov Institute of Semiconductor Physics SB RAS 1 , 13 Lavrentiev Ave., Novosibirsk 630090,
Evgeny Yu. Zhdanov
Rzhanov Institute of Semiconductor Physics SB RAS 1 , 13 Lavrentiev Ave., Novosibirsk 630090,
Andrey A. Shevyrin
Rzhanov Institute of Semiconductor Physics SB RAS 1 , 13 Lavrentyeva ave., Novosibirsk 630090,
Askhat K. Bakarov
Rzhanov Institute of Semiconductor Physics SB RAS 1 , 13 Lavrentyeva ave., Novosibirsk 630090,
Alexander A. Shklyaev
Rzhanov Institute of Semiconductor Physics SB RAS 1 , 13 Lavrentyeva ave., Novosibirsk 630090,
Arthur G. Pogosov
Rzhanov Institute of Semiconductor Physics SB RAS 1 , 13 Lavrentyeva ave., Novosibirsk 630090,