Abstract
The carriers in InAs-GaSb double quantum wells are hybrid "electron-holes". We study the magnetotransport properties of such particles using a two-component Keldysh technique, which results in a semi-analytic expression for the small-field current. This approach is necessary for calculating the zero-temperature current, which is large even when the Fermi energy lies within the hybridization gap (in a semiclassical (Boltzmann) approach this current vanishes). Magnetic-field dependence of the conductance is also affected significantly by the hybridization of electrons and holes.
Original language | English |
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Pages (from-to) | 545-551 |
Number of pages | 7 |
Journal | Europhysics Letters |
Volume | 55 |
Issue number | 4 |
DOIs | |
State | Published - 11 Aug 2001 |