Magnetism in Industry

Pictures on this web site have been allowed by the authors to appear for information purposes only, and only with full attribution of the work. Appearance of a picture here does not in any way diminish the copyrights of the authors. Anyone wishing to use a figure or figures for other purposes should obtain permission of the authors to do so.


1. Schematic of a Tunneling Magnetoresistance (TMR) Magnetic Random Access Memory (MRAM) Bit
(From: “Nonvolatile Magnetoresistive Random-Access Memory Based on Magnetic Tunnel Junctions, by G. Grynkewich et al., MRS Bulletin, 29, 818-821 (2005)).
Permission from J. Slaughter.
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2. Table comparing Characteristics of Memory Technologies for MRAM and other-RAM
From: “Nonvolatile Magnetoresistive Random-Access Memory Based on Magnetic Tunnel Junctions, by G. Grynkewich et al., MRS Bulletin, 29, 818-821 (2005)).
Permission from J. Slaughter.
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3. Magnets in an Automobile
From the web site of Michael Coey, http://www.tcd.ie/Physics/Magnetism/Guide/magmoments.php.
Permission from J.M.D. Coey.
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4. Longitudinal Recording
Schematic of longitudinal recording process, including inductive longitudinal "ring-type" write head, magnetoresistive read head, and longitudinal media track.
Permissionfrom J. Childress.
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5. Perpendicular Recording
Schematic of perpendicular recording process, including inductive perpendicular "single-pole" write head, magnetoresistive read head, and perpendicular media track with soft underlayer (to provide return path for write flux).
Permission from J. Childress.
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