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Drag and Hall drag in a bi-layer system with pinholes | | Yuval Oreg
; Bertrand I. Halperin
; | | Date: |
3 May 1999 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall | | Abstract: | The transresistance and the Hall transresistance of dirty two-dimensional bi-layer systems in the presence of tunneling bridges (pinholes) are studied theoretically. We find, at weak magnetic field, a non-zero Hall transresistance. In a geometry where the pinholes are concentrated in the middle of the sample, a quantum process gives the dominant contribution to both the ordinary transresistance and the Hall transresistance. Arising from the interplay between Coulomb repulsion, disorder and tunneling, the quantum contribution increases in a singular way as the temperature decreases. | | Source: | arXiv, cond-mat/9905029 | | Services: | Forum | Review | PDF | Favorites | |
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