A 1D analysis of nano multiferroic composites for the novel read head technology

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Publication Details

Author list: Choowitsakunlert S., Satitchantrakul T., Silapunt R.

Publisher: Trans Tech Publications

Publication year: 2014

Volume number: 1052

Start page: 149

End page: 154

Number of pages: 6

ISBN: 9783038353188; 9783038353188

ISSN: 1022-6680

eISSN: 1662-8985

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921460590&doi=10.4028%2fwww.scientific.net%2fAMR.1052.149&partnerID=40&md5=e75f7b7fe528ee6993873942204c2ae6

Languages: English-Great Britain (EN-GB)

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Abstract

The magnetoelectric (ME) effect induced in a multiferroic composite is potentially a key to improve the performance of the nano read head in the future magnetic recording device. In this paper, the analysis of the 1-dimensional (1D) L-T mode model containing sandwiched structures of Terfenol-D/Lead zirconate titanate (PZT)/Terfenol-D nano multiferroic composites is performed. The magnetostriction process is described using the 1D standard square law. The magnetoelectric coupling is then investigated. The piezoelectric response on the applied dc magnetic field and PZT to Terfenol-D thickness (tp:tm) ratio, is determined. The optimal electric field and potential across the PZT layer are achieved at 1.3:1 thickness ratio. The result agrees well with the associated magnetic field-induced strain profile. The peak ME coefficient is found at 1.37:1 thickness ratio. ฉ (2014) Trans Tech Publications, Switzerland.

Keywords

magnetoelectric coefficient, magnetostrictive, Multiferroic composites, Read sensor