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Title: Magnetostatic coupling in spin valves: Revisiting Neel's formula

Abstract

We use a numerical, atomistic approach to calculate the magnetostatic coupling in spin valves. In addition to the numerical treatment, the coupling energy is evaluated analytically and it is shown that Neel's formula is accurate to first order in the ratio of roughness amplitude to grain size. We also generalize the formula so that it can be applied to systems such as Py/Co/Cu/Co/Py spin valves that have complex ferromagnetic layers. (c) 2000 American Institute of Physics.

Authors:
 [1];  [1]
  1. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6114 (United States)
Publication Date:
OSTI Identifier:
20216245
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 87; Journal Issue: 9; Other Information: PBD: 1 May 2000; Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COBALT; COPPER; LAYERS; GRAIN SIZE; FERROMAGNETIC MATERIALS; ROUGHNESS; MAGNETIZATION; CHARGE DISTRIBUTION; INTERFACES; THEORETICAL DATA

Citation Formats

Schulthess, T. C., and Butler, W. H. Magnetostatic coupling in spin valves: Revisiting Neel's formula. United States: N. p., 2000. Web. doi:10.1063/1.372513.
Schulthess, T. C., & Butler, W. H. Magnetostatic coupling in spin valves: Revisiting Neel's formula. United States. doi:10.1063/1.372513.
Schulthess, T. C., and Butler, W. H. Mon . "Magnetostatic coupling in spin valves: Revisiting Neel's formula". United States. doi:10.1063/1.372513.
@article{osti_20216245,
title = {Magnetostatic coupling in spin valves: Revisiting Neel's formula},
author = {Schulthess, T. C. and Butler, W. H.},
abstractNote = {We use a numerical, atomistic approach to calculate the magnetostatic coupling in spin valves. In addition to the numerical treatment, the coupling energy is evaluated analytically and it is shown that Neel's formula is accurate to first order in the ratio of roughness amplitude to grain size. We also generalize the formula so that it can be applied to systems such as Py/Co/Cu/Co/Py spin valves that have complex ferromagnetic layers. (c) 2000 American Institute of Physics.},
doi = {10.1063/1.372513},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 9,
volume = 87,
place = {United States},
year = {2000},
month = {5}
}