A study of antiferromagnetic-pinned multiferroic composites nano read head

Salinee Choowitsakunlert, Rardchawadee Silapunt, Hideki Yokoi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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) 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 Cr2O3, respectively. The magnetoelectric (ME) effect is 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. Specifically, the influence of AFM on the MF composites structure for various AFM thicknesses is of interest. 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 agreed by associated magnetic fieldinduced strain and ME coefficient.

Original languageEnglish
Title of host publicationASME 2016 Conference on Information Storage and Processing Systems, ISPS 2016
PublisherAmerican Society of Mechanical Engineers
ISBN (Electronic)9780791849880
DOIs
Publication statusPublished - 2016
EventASME 2016 Conference on Information Storage and Processing Systems, ISPS 2016 - Santa Clara, United States
Duration: 2016 Jun 202016 Jun 21

Other

OtherASME 2016 Conference on Information Storage and Processing Systems, ISPS 2016
CountryUnited States
CitySanta Clara
Period16/6/2016/6/21

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ASJC Scopus subject areas

  • Control and Systems Engineering
  • Hardware and Architecture
  • Information Systems

Cite this

Choowitsakunlert, S., Silapunt, R., & Yokoi, H. (2016). A study of antiferromagnetic-pinned multiferroic composites nano read head. In ASME 2016 Conference on Information Storage and Processing Systems, ISPS 2016 American Society of Mechanical Engineers. https://doi.org/10.1115/ISPS2016-9570