Magnetostatic coupling in spin valves: Revisiting Neel's formula

Authors
Schulthess, TC Butler, WH
Citation
Tc. Schulthess et Wh. Butler, Magnetostatic coupling in spin valves: Revisiting Neel's formula, J APPL PHYS, 87(9), 2000, pp. 5759-5761
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF APPLIED PHYSICS
ISSN journal
00218979 → ACNP
Volume
87
Issue
9
Year of publication
2000
Part
2
Pages
5759 - 5761
Database
ISI
SICI code
0021-8979(20000501)87:9<5759:MCISVR>2.0.ZU;2-8
Abstract
We use a numerical, atomistic approach to calculate the magnetostatic coupl ing in spin valves. In addition to the numerical treatment, the coupling en ergy is evaluated analytically and it is shown that Neel's formula is accur ate to first order in the ratio of roughness amplitude to grain size. We al so generalize the formula so that it can be applied to systems such as Py/C o/Cu/Co/Py spin valves that have complex ferromagnetic layers. (C) 2000 Ame rican Institute of Physics. [S0021-8979(00)45208-4].