TY - JOUR
T1 - A 1D study of antiferromagnetic operated on multiferroic composites in nano read head
AU - Choowitsakunlert, Salinee
AU - Silapunt, Rardchawadee
AU - Yokoi, Hideki
N1 - Funding Information:
This work was partially supported by the SIT Research Center for Green Innovation.
Publisher Copyright:
© 2017, Springer-Verlag Berlin Heidelberg.
PY - 2017/11/1
Y1 - 2017/11/1
N2 - 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 Cr 2O 3, 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 Cr 2O 3. 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.
AB - 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 Cr 2O 3, 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 Cr 2O 3. 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.
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U2 - 10.1007/s00542-017-3343-7
DO - 10.1007/s00542-017-3343-7
M3 - Article
AN - SCOPUS:85014074033
SN - 0946-7076
VL - 23
SP - 5143
EP - 5147
JO - Microsystem Technologies
JF - Microsystem Technologies
IS - 11
ER -