Bulletin of the American Physical Society
APS March Meeting 2010
Volume 55, Number 2
Monday–Friday, March 15–19, 2010; Portland, Oregon
Session A34: Focus Session: Nanomagnetism -- Nanostructured Films
8:00 AM–10:48 AM,
Monday, March 15, 2010
Sponsoring Units: DMP GMAG
Chair: Kirill Bolotin, Vanderbilt University
Abstract ID: BAPS.2010.MAR.A34.10
Abstract: A34.00010 : Interlayer coupling enhanced by the interface roughness: A perturbative method*
9:48 AM–10:00 AM
Preview Abstract Abstract
Previous experiment on Fe/Cr/Fe$\Delta$001$\Theta$ trilayers reported a surprising observation that the interlayer exchange coupling could be enhanced drastically by the bombardment of irradiation even at low fluences. We propose that it is due to the resonant states in the spacer made possible when the topography of both interfaces is correlated and exhibits prominent Fourier components. A systematic procedure is developed to handle the interface roughness and predict on how to optimize the interlayer coupling. This method can be extended to bridge the gap between theories and experiments in other heterojunctions.
*We acknowledge the support by National Science Council in Taiwan under Grants No. 95-2120-M007-008 and No. 96-2120-M-007-002.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.MAR.A34.10
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