Magnetization switching and hall effect in co/pd-based pseudospin-valves with perpendicular magnetic anisotropy

Jun Yang Chen, Naganivetha Thiyagarajah, Karsten Rode, Timothy V. Ashworth, J. M D Coey

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1 Scopus citations

Abstract

Magnetoresistance (MR), extraordinary Hall effect (EHE), planar Hall effect (PHE), and low-frequency noise are measured on pseudospin-valves based on Co/Pd multilayers with perpendicular magnetic anisotropy. In unpatterned films, a current-in-plane MR of 3.8% was obtained with a Cu spacer layer thickness of 2.0 nm. Large anomalous peaks observed in EHE and PHE in the narrow range of field where switching occurs are associated with multidomain magnetization during the reversal process. Magnetic field-and time-dependent noise indicates that the magnitude of the noise is directly related to magnetization switching in this system.

Original languageEnglish (US)
Article number6971365
JournalIEEE Transactions on Magnetics
Volume50
Issue number11
DOIs
StatePublished - Nov 1 2014

Keywords

  • 1/f noise
  • Co/Pd-based pseudospin-valves (PSVs)
  • giant magnetoresistance (GMR)
  • perpendicular magnetic anisotropy (PMA)

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