FR3114883B1 - Systeme et procede de suppression du bruit magnetique basse frequence de capteurs magneto-resistifs - Google Patents

Systeme et procede de suppression du bruit magnetique basse frequence de capteurs magneto-resistifs Download PDF

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Publication number
FR3114883B1
FR3114883B1 FR2010041A FR2010041A FR3114883B1 FR 3114883 B1 FR3114883 B1 FR 3114883B1 FR 2010041 A FR2010041 A FR 2010041A FR 2010041 A FR2010041 A FR 2010041A FR 3114883 B1 FR3114883 B1 FR 3114883B1
Authority
FR
France
Prior art keywords
magneto
low frequency
frequency magnetic
suppressing low
magnetic noise
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR2010041A
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English (en)
Other versions
FR3114883A1 (fr
Inventor
Aurélie Solignac
Garcia Mafalda Jotta
Julien Moulin
Steffen Wittrock
Paolo Bortolotti
Vincent Cros
Claude Fermon
Myriam Pannetier-Lecoeur
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Centre National de la Recherche Scientifique CNRS
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Centre National de la Recherche Scientifique CNRS
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Centre National de la Recherche Scientifique CNRS, Commissariat a lEnergie Atomique CEA, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical Centre National de la Recherche Scientifique CNRS
Priority to FR2010041A priority Critical patent/FR3114883B1/fr
Priority to PCT/EP2021/076939 priority patent/WO2022069626A1/fr
Priority to US18/247,001 priority patent/US20230366955A1/en
Priority to JP2023520115A priority patent/JP2023543900A/ja
Priority to EP21783294.8A priority patent/EP4222515A1/fr
Publication of FR3114883A1 publication Critical patent/FR3114883A1/fr
Application granted granted Critical
Publication of FR3114883B1 publication Critical patent/FR3114883B1/fr
Active legal-status Critical Current
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices
    • G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant magnetoresistance sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/0017—Means for compensating offset magnetic fields or the magnetic flux to be measured; Means for generating calibration magnetic fields
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/0023—Electronic aspects, e.g. circuits for stimulation, evaluation, control; Treating the measured signals; calibration
    • G01R33/0041—Electronic aspects, e.g. circuits for stimulation, evaluation, control; Treating the measured signals; calibration using feed-back or modulation techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/025—Compensating stray fields
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices
    • G01R33/098—Magnetoresistive devices comprising tunnel junctions, e.g. tunnel magnetoresistance sensors

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Hall/Mr Elements (AREA)
  • Measuring Magnetic Variables (AREA)
  • Magnetic Heads (AREA)

Abstract

L’invention a pour objet un système (111,112,113) de suppression du bruit magnétique basse fréquence de capteurs magnéto-résistifs, ledit système comprenant : Au moins un capteur magnéto-résistif (101) comprenant une couche magnétique libre ayant une aimantation variable ;Des moyens (102,104,105,106) de modification de l’aimantation de la couche magnétique libre ; ledit système (111,112,113) de suppression du bruit magnétique basse fréquence étant caractérisé en ce que les moyens (102,104,105,106) de modification de l’aimantation de la couche libre sont adaptés pour entraîner une dynamique de l’aimantation de la couche magnétique libre. Figure à publier avec l’abrégé : 1A
FR2010041A 2020-10-01 2020-10-01 Systeme et procede de suppression du bruit magnetique basse frequence de capteurs magneto-resistifs Active FR3114883B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR2010041A FR3114883B1 (fr) 2020-10-01 2020-10-01 Systeme et procede de suppression du bruit magnetique basse frequence de capteurs magneto-resistifs
PCT/EP2021/076939 WO2022069626A1 (fr) 2020-10-01 2021-09-30 Système et procédé de suppression du bruit magnétique basse fréquence de capteurs magnéto-résistifs
US18/247,001 US20230366955A1 (en) 2020-10-01 2021-09-30 System and method for suppressing low frequency magnetic noise in magneto-resistive sensors
JP2023520115A JP2023543900A (ja) 2020-10-01 2021-09-30 磁気抵抗センサにおける低周波磁気ノイズを抑制するためのシステムおよび方法
EP21783294.8A EP4222515A1 (fr) 2020-10-01 2021-09-30 Système et procédé de suppression du bruit magnétique basse fréquence de capteurs magnéto-résistifs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2010041 2020-10-01
FR2010041A FR3114883B1 (fr) 2020-10-01 2020-10-01 Systeme et procede de suppression du bruit magnetique basse frequence de capteurs magneto-resistifs

Publications (2)

Publication Number Publication Date
FR3114883A1 FR3114883A1 (fr) 2022-04-08
FR3114883B1 true FR3114883B1 (fr) 2023-02-10

Family

ID=75438825

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2010041A Active FR3114883B1 (fr) 2020-10-01 2020-10-01 Systeme et procede de suppression du bruit magnetique basse frequence de capteurs magneto-resistifs

Country Status (5)

Country Link
US (1) US20230366955A1 (fr)
EP (1) EP4222515A1 (fr)
JP (1) JP2023543900A (fr)
FR (1) FR3114883B1 (fr)
WO (1) WO2022069626A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7057862B2 (en) * 2004-02-10 2006-06-06 Hitachi Global Storage Technologies Netherlands B.V. Current-perpendicular-to-plane-magnetoresistive sensor with free layer stabilized against vortex magnetic domains generated by the sense current
FR2977999B1 (fr) * 2011-07-12 2013-08-23 Thales Sa Oscillateur spintronique et utilisation de celui-ci dans des dispositifs radiofrequence
US8975891B2 (en) * 2011-11-04 2015-03-10 Honeywell International Inc. Apparatus and method for determining in-plane magnetic field components of a magnetic field using a single magnetoresistive sensor
DE102015121753B4 (de) * 2015-12-14 2021-10-21 Infineon Technologies Ag Magnetsensorbauelement und Verfahren für ein Magnetsensorbauelement mit einer magnetoresistiven Struktur
JP2017191841A (ja) * 2016-04-12 2017-10-19 国立大学法人東北大学 磁気センサ素子及び磁気センサ
FR3067125B1 (fr) 2017-06-02 2019-07-12 Commissariat A L'energie Atomique Et Aux Energies Alternatives Systeme et procede de suppression du bruit basse frequence de capteurs magneto-resistifs
US11346899B2 (en) * 2018-07-06 2022-05-31 Infineon Technologies Ag Magnetoresistive sensor with reduced stress sensitivity
CN110837066B (zh) * 2018-08-17 2022-01-04 爱盛科技股份有限公司 磁场感测装置

Also Published As

Publication number Publication date
WO2022069626A1 (fr) 2022-04-07
JP2023543900A (ja) 2023-10-18
US20230366955A1 (en) 2023-11-16
FR3114883A1 (fr) 2022-04-08
EP4222515A1 (fr) 2023-08-09

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