Large longitudinal magnetoelectric coupling in NiFe2O 4-BaTiO3 laminates

Deepak Patil; June Hee Kim; Yi Sheng Chai; Joong Hee Nam; Jeong Ho Cho; Byung Ik Kim; Kee Hoon Kim

doi:10.1143/APEX.4.073001

Large longitudinal magnetoelectric coupling in NiFe₂O ₄-BaTiO₃ laminates

Deepak Patil
, June Hee Kim
, Yi Sheng Chai
, Joong Hee Nam
, Jeong Ho Cho
, Byung Ik Kim
, Kee Hoon Kim

Department of Physics

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

In contrast to the Pb-based magnetoelectric laminates (MELs), we find in the BaTiO₃ and NiFe₂O₄ laminates (number of layers n = 5-25) that the longitudinal magnetoelectric (ME) voltage coefficient α_E33 becomes much larger than the transverse one due to preferential alignment of magnetic moments along the NiFe₂O ₄ plane. Moreover, upon decreasing each layer thickness down to 15 μm, we realize enhanced α_E33 up to 18 mV/(cm·Oe) and systematic increase of the ME sensitivity in proportion to n to achieve the largest in the Pb-free MELs (400 × 10^-6 V/Oe), thereby providing pathways for tailoring ME coupling in mass-produced, environment friendly laminates.

Original language	English
Article number	073001
Journal	Applied Physics Express
Volume	4
Issue number	7
DOIs	https://doi.org/10.1143/APEX.4.073001
State	Published - Jul 2011

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title = "Large longitudinal magnetoelectric coupling in NiFe2O 4-BaTiO3 laminates",

abstract = "In contrast to the Pb-based magnetoelectric laminates (MELs), we find in the BaTiO3 and NiFe2O4 laminates (number of layers n = 5-25) that the longitudinal magnetoelectric (ME) voltage coefficient αE33 becomes much larger than the transverse one due to preferential alignment of magnetic moments along the NiFe2O 4 plane. Moreover, upon decreasing each layer thickness down to 15 μm, we realize enhanced αE33 up to 18 mV/(cm·Oe) and systematic increase of the ME sensitivity in proportion to n to achieve the largest in the Pb-free MELs (400 × 10-6 V/Oe), thereby providing pathways for tailoring ME coupling in mass-produced, environment friendly laminates.",

author = "Deepak Patil and Kim, \{June Hee\} and Chai, \{Yi Sheng\} and Nam, \{Joong Hee\} and Cho, \{Jeong Ho\} and Kim, \{Byung Ik\} and Kim, \{Kee Hoon\}",

year = "2011",

month = jul,

doi = "10.1143/APEX.4.073001",

language = "English",

volume = "4",

journal = "Applied Physics Express",

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T1 - Large longitudinal magnetoelectric coupling in NiFe2O 4-BaTiO3 laminates

AU - Patil, Deepak

AU - Kim, June Hee

AU - Chai, Yi Sheng

AU - Nam, Joong Hee

AU - Cho, Jeong Ho

AU - Kim, Byung Ik

AU - Kim, Kee Hoon

PY - 2011/7

Y1 - 2011/7

N2 - In contrast to the Pb-based magnetoelectric laminates (MELs), we find in the BaTiO3 and NiFe2O4 laminates (number of layers n = 5-25) that the longitudinal magnetoelectric (ME) voltage coefficient αE33 becomes much larger than the transverse one due to preferential alignment of magnetic moments along the NiFe2O 4 plane. Moreover, upon decreasing each layer thickness down to 15 μm, we realize enhanced αE33 up to 18 mV/(cm·Oe) and systematic increase of the ME sensitivity in proportion to n to achieve the largest in the Pb-free MELs (400 × 10-6 V/Oe), thereby providing pathways for tailoring ME coupling in mass-produced, environment friendly laminates.

AB - In contrast to the Pb-based magnetoelectric laminates (MELs), we find in the BaTiO3 and NiFe2O4 laminates (number of layers n = 5-25) that the longitudinal magnetoelectric (ME) voltage coefficient αE33 becomes much larger than the transverse one due to preferential alignment of magnetic moments along the NiFe2O 4 plane. Moreover, upon decreasing each layer thickness down to 15 μm, we realize enhanced αE33 up to 18 mV/(cm·Oe) and systematic increase of the ME sensitivity in proportion to n to achieve the largest in the Pb-free MELs (400 × 10-6 V/Oe), thereby providing pathways for tailoring ME coupling in mass-produced, environment friendly laminates.

UR - https://www.scopus.com/pages/publications/79960266255

U2 - 10.1143/APEX.4.073001

DO - 10.1143/APEX.4.073001

M3 - Article

AN - SCOPUS:79960266255

SN - 1882-0778

VL - 4

JO - Applied Physics Express

JF - Applied Physics Express

IS - 7

M1 - 073001

ER -

Large longitudinal magnetoelectric coupling in NiFe₂O ₄-BaTiO₃ laminates

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