A 1D study of antiferromagnetic operated on multiferroic composites in nano read head

Salinee Choowitsakunlert, Rardchawadee Silapunt, Hideki Yokoi

研究成果: Article

抄録

This paper presents a study of the effect of antiferromagnetic (AFM) integration on the nano AFM-pinned multiferroic (MF) composites structure. The nano MF composites structure is a potential candidate for a future magnetic read head. The simulation of the AFM/ ferromagnetic (FM) bilayers characteristics and the evaluation of the magnetoelectric (ME) effect induced in the 1-dimensional (1D) longitudinal–transverse (L–T) mode model of AFM-pinned structure of AFM/FM/Ferroelectric (FE)/FM/AFM are performed. FM, FE, and two types of AFM materials are Terfenol-D, lead zirconate titanate (PZT), and PtMn and (Formula presented.), respectively. The AFM material is used in pinning the magnetization of the FM layer through the exchange bias effect. The result shows that the bilayer characteristic is clearly altered by the presence of AFM and the magnetization saturation of the bilayer increases with the AFM thickness. PtMn exhibits more stable magnetic characteristic than (Formula presented.). The ME effect is then investigated using the 1D standard square law. Magnetic-field induced strain in the FM layer, piezoelectric response of the PZT layer, and the ME coefficient are determined. It is found that the maximum electric field and potential across the PZT layer are achieved at 2.7 nm thick of PtMn. The result is well supported by associated magnetic field-induced strain and ME coefficient.

言語English
ページ1-5
Number of pages5
ジャーナルMicrosystem Technologies
DOIs
StateAccepted/In press - 2017 3 2

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Antiferromagnetic materials
Magnetoelectric effects
Composite structures
Ferroelectric materials
Magnetic fields
composite materials
Composite materials
composite structures
Saturation magnetization
Magnetization
Electric fields
magnetization
Electric potential
coefficients
magnetic fields
saturation
electric fields
evaluation
electric potential
simulation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Hardware and Architecture
  • Electrical and Electronic Engineering

これを引用

A 1D study of antiferromagnetic operated on multiferroic composites in nano read head. / Choowitsakunlert, Salinee; Silapunt, Rardchawadee; Yokoi, Hideki.

:: Microsystem Technologies, 02.03.2017, p. 1-5.

研究成果: Article

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