期刊
EUROPHYSICS LETTERS
卷 55, 期 4, 页码 545-551出版社
E D P SCIENCES
DOI: 10.1209/epl/i2001-00450-8
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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.
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