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Title: Effective anisotropy gradient in pressure graded [Co/Pd] multilayers

We have used polarized neutron reflectometry to show that controlled variation of growth pressure during deposition of Co/Pd multilayers can be used to achieve a significant vertical gradient in the effective anisotropy. This gradient is strongly dependent on deposition order (low to high pressure or vice versa), and is accompanied by a corresponding gradient in saturation magnetization. These results demonstrate pressure-grading as an attractively simple technique for tailoring the anisotropy profile of magnetic media.
Authors:
;  [1] ; ;  [2] ;  [3]
  1. Center for Neutron Research, NIST, Gaithersburg, Maryland 20899 (United States)
  2. Physics Department, University of California, Davis, California 95616 (United States)
  3. Advanced Technology Group, NVE Corporation, Eden Prarie, Minneapolis 55344 (United States)
Publication Date:
OSTI Identifier:
22413088
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; COBALT; CRYSTAL GROWTH; DEPOSITION; INTERFACES; LAYERS; MAGNETIC MATERIALS; MAGNETIZATION; NEUTRON DIFFRACTION; PALLADIUM; POLARIZATION; PRESSURE DEPENDENCE; VARIATIONS