title: On the temperature dependence of ballistic Coulomb drag in nanowires.
abstract: We have investigated within Fermi liquid theory the dependence of Coulomb drag current in a passive quantum wire on the applied voltage V across an active wire and on the temperature T for any values of eV/k(B)T. We assume that the bottoms of the 1D minibands in both wires almost coincide with the Fermi level. We conclude that: (1) within a certain temperature interval the drag current can be a descending function of the temperature T; (2) the experimentally observed temperature dependence T(-0.77) of the drag current can be interpreted within the framework of Fermi liquid theory; (3) at relatively high applied voltages the drag current saturates as a function of the applied voltage; and (4) the screening of the electron potential by metallic gate electrodes can be of importance.
authors.affiliation: A F Ioffe Institute of Russian Academy of Sciences, 194021 St Petersburg, Russia. muradov@mail.ioffe.ru
authors.forename: M I
authors.initials: MI
authors.lastname: Muradov
authors.forename: V L
authors.initials: VL
authors.lastname: Gurevich
mesh_terms: D004553:Electric Conductivity; D004566:Electrodes; D004583:Electrons; D008956:Models, Chemical; D053770:Nanowires / Q000737:chemistry*; D013696:Temperature