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26 April 2024 |
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Umklapp-Assisted Electron Transport Oscillations in Metal Superlattices | | S. I. Kulinich
; L. Y. Gorelik
; S. A. Gredeskul
; R. I. Shekhter
; M. Jonson
; | | Date: |
28 Nov 2011 | | Abstract: | We consider a superlattice of parallel metal tunnel junctions with a
spatially non-homogeneous probability for electrons to tunnel. In such
structures tunneling can be accompanied by electron scattering that conserves
energy but not momentum. In the special case of a tunneling probability that
varies periodically with period $a$ in the longitudinal direction, i.e.,
perpendicular to the junctions, electron tunneling is accompanied by "umklapp"
scattering, where the longitudinal momentum changes by a multiple of $h/a$. We
predict that as a result a sequence of metal-insulator transitions can be
induced by an external electric- or magnetic field as the field strength is
increased. | | Source: | arXiv, 1111.6462 | | Services: | Forum | Review | PDF | Favorites | |
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