Anisotropic magnetoresistance: materials, models and applications

Resistance of certain (conductive and otherwise isotropic) ferromagnets turns out to exhibit anisotropy with respect to the direction of magnetization: [Formula: see text] for magnetization parallel to the electric current direction is different from R⊥ for magnetization perpendicular to the electri...

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Main Authors: Philipp Ritzinger, Karel Výborný
Format: Article
Language:English
Published: The Royal Society 2023-10-01
Series:Royal Society Open Science
Subjects:
Online Access:https://royalsocietypublishing.org/doi/10.1098/rsos.230564
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author Philipp Ritzinger
Karel Výborný
author_facet Philipp Ritzinger
Karel Výborný
author_sort Philipp Ritzinger
collection DOAJ
description Resistance of certain (conductive and otherwise isotropic) ferromagnets turns out to exhibit anisotropy with respect to the direction of magnetization: [Formula: see text] for magnetization parallel to the electric current direction is different from R⊥ for magnetization perpendicular to the electric current direction. In this review, this century-old phenomenon is reviewed both from the perspective of materials and physical mechanisms involved. More recently, this effect has also been identified and studied in antiferromagnets. To date, sensors based on the anisotropic magnetoresistance (AMR) effect are widely used in different fields, such as the automotive industry, aerospace or in biomedical imaging.
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spelling doaj.art-1f37a8ed393542e5acdfe498406c76252023-10-18T07:05:16ZengThe Royal SocietyRoyal Society Open Science2054-57032023-10-01101010.1098/rsos.230564Anisotropic magnetoresistance: materials, models and applicationsPhilipp Ritzinger0Karel Výborný1FZU—Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, Praha 6 16253, Czech RepublicFZU—Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, Praha 6 16253, Czech RepublicResistance of certain (conductive and otherwise isotropic) ferromagnets turns out to exhibit anisotropy with respect to the direction of magnetization: [Formula: see text] for magnetization parallel to the electric current direction is different from R⊥ for magnetization perpendicular to the electric current direction. In this review, this century-old phenomenon is reviewed both from the perspective of materials and physical mechanisms involved. More recently, this effect has also been identified and studied in antiferromagnets. To date, sensors based on the anisotropic magnetoresistance (AMR) effect are widely used in different fields, such as the automotive industry, aerospace or in biomedical imaging.https://royalsocietypublishing.org/doi/10.1098/rsos.230564resistanceanisotropic magnetoresistanceferromagnetsantiferromagnetstransition metalssensors
spellingShingle Philipp Ritzinger
Karel Výborný
Anisotropic magnetoresistance: materials, models and applications
Royal Society Open Science
resistance
anisotropic magnetoresistance
ferromagnets
antiferromagnets
transition metals
sensors
title Anisotropic magnetoresistance: materials, models and applications
title_full Anisotropic magnetoresistance: materials, models and applications
title_fullStr Anisotropic magnetoresistance: materials, models and applications
title_full_unstemmed Anisotropic magnetoresistance: materials, models and applications
title_short Anisotropic magnetoresistance: materials, models and applications
title_sort anisotropic magnetoresistance materials models and applications
topic resistance
anisotropic magnetoresistance
ferromagnets
antiferromagnets
transition metals
sensors
url https://royalsocietypublishing.org/doi/10.1098/rsos.230564
work_keys_str_mv AT philippritzinger anisotropicmagnetoresistancematerialsmodelsandapplications
AT karelvyborny anisotropicmagnetoresistancematerialsmodelsandapplications