Haney, P.
, Heiliger, C.
and Stiles, M.
(2009),
Bias dependence of magnetic exchange interactions: application to interlayer exchange coupling in spin valves., Physical Review B (Condensed Matter and Materials Physics), [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=620602
(Accessed December 15, 2024)
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Bias dependence of magnetic exchange interactions: application to interlayer exchange coupling in spin valves.
Published
Author(s)
, ,
Abstract
We study how a bias voltage changes magnetic exchange interactions. We derive a general expression for magnetic exchange interactions for open systems under a bias potential, and apply it to spin valves. We find that for metallic systems, the interlayer exchange coupling shows a weak, oscillatory dependence on the bias potential. For tunneling systems, we find a quadratic dependence on the bias potential, and derive an approximate expression for this bias dependence for a toy model. We give general conditions for when the bias dependence must be quadratic.Citation
Physical Review B (Condensed Matter and Materials Physics)
Volume
79
Issue
5
Pub Type
Journals
Download Paper
Keywords
Interlayer exchange coupling, spin transfer torque
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.
Created February 3, 2009, Updated February 19, 2017