A Study of Antiferromagnetic-Pinned Multiferroic Composites Nano Read Head

2016 ◽  
Author(s):  
Salinee Choowitsakunlert ◽  
Rardchawadee Silapunt ◽  
Hideki Yokoi
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Piezoelectric Response ◽  
Potential Candidate ◽  
Zirconate Titanate ◽  
Read Head ◽  
Maximum Electric Field

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 field-induced strain and ME coefficient.

A 1D Analysis of Nano Multiferroic Composites for the Novel Read Head Technology

2014 ◽  
Vol 1052 ◽  
pp. 149-154 ◽  
Author(s):  
Salinee Choowitsakunlert ◽  
Thanatcha Satitchantrakul ◽  
Rardchawadee Silapunt
Keyword(s):  
Magnetic Field ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Thickness Ratio ◽  
Piezoelectric Response ◽  
Recording Device ◽  
The Novel ◽  
Dc Magnetic Field ◽  
Read Head ◽  
Multiferroic Composite

The magnetoelectric (ME) effect induced in a multiferroic composite is potentially a key to improve the performance of the nanoread 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 nanomultiferroic 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.

De-aging of Fe-doped lead-zirconate-titanate ceramics by electric field cycling: 180°- vs. non-180° domain wall processes

2012 ◽  
Vol 112 (3) ◽  
pp. 034103 ◽  
Author(s):  
Julia Glaum ◽  
Yuri A. Genenko ◽  
Hans Kungl ◽  
Ljubomira Ana Schmitt ◽  
Torsten Granzow
Keyword(s):  
Domain Wall ◽  
Electric Field ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Zirconate Titanate ◽  
Field Cycling ◽  
Titanate Ceramics

Electric field forced phase switching in La‐modified lead zirconate titanate stannate thin films

1994 ◽  
Vol 75 (3) ◽  
pp. 1699-1704 ◽  
Author(s):  
K. G. Brooks ◽  
J. Chen ◽  
K. R. Udayakumar ◽  
L. E. Cross
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Phase Switching ◽  
Zirconate Titanate
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