Conductance oscillations in transition metal superlattices

Sanvito, S and Lambert, C J and Jefferson, J H and Bratkovsky, A M (1998) Conductance oscillations in transition metal superlattices. Journal of Physics: Condensed Matter, 10 (42). L691-L697. ISSN 0953-8984

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Abstract

We present a numerical study of conductance oscillations of transition metal multilayers as a function of layer thickness. Using a realistic material-specific tight-binding model, we show that for disorder-free layers with random thicknesses but clean interfaces, long-period oscillations in the conductance can occur, which are reminiscent of those found in structures exhibiting GMR. Using a heuristic effective mass model, we argue that these oscillations arise from beating between the Fermi wavevector and a class of wavevectors characteristic of the superlattice structure.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Physics: Condensed Matter
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
58164
Deposited By:
Deposited On:
24 Oct 2012 14:22
Refereed?:
Yes
Published?:
Published
Last Modified:
25 Feb 2020 07:05