Electric-field control of magnetic property in perpendicularly magnetized Co0.25Pd0.75/PMN-PT heterostructure

Ji Wan Kim; Ju Hyun Kim; Chun Yeol You; Sung Chul Shin

doi:10.1016/j.cap.2017.03.006

Electric-field control of magnetic property in perpendicularly magnetized Co_0.25Pd_0.75/PMN-PT heterostructure

Ji Wan Kim
, Ju Hyun Kim
, Chun Yeol You
, Sung Chul Shin

Department of Physics and Chemistry

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

4 Scopus citations

Abstract

We report about the electric-field control of magnetic properties in a perpendicularly magnetized Co_0.25Pd_0.75 film deposited on PMN-PT (lead magnesium niobate-lead titanate) substrate. The effective perpendicular anisotropy coefficient K_eff is efficiently tuned via the electric field up to 2 MV/m from 2.5 × 10⁴ to 0.8 × 10⁴ J/m³, which leads to the change of the effective magnetic anisotropy field μ₀ΔH_eff = −45 mT. With a time-resolved magneto-optical Kerr effect, we observed the precession frequency change Δf = 0.8 GHz. Our simulation estimates that this value corresponds to Δf = −3 GHz and Δf/f = −0.23 in a scheme of ferromagnetic resonance measurement.

Original language	English
Pages (from-to)	940-944
Number of pages	5
Journal	Current Applied Physics
Volume	17
Issue number	7
DOIs	https://doi.org/10.1016/j.cap.2017.03.006
State	Published - 1 Jul 2017

Bibliographical note

Publisher Copyright:
© 2017

Keywords

Ferromagnetic/piezoelectric heterostructure
Magnetostrictive material
Time-resolved magneto-optical Kerr effect

Access to Document

10.1016/j.cap.2017.03.006

Cite this

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title = "Electric-field control of magnetic property in perpendicularly magnetized Co0.25Pd0.75/PMN-PT heterostructure",

abstract = "We report about the electric-field control of magnetic properties in a perpendicularly magnetized Co0.25Pd0.75 film deposited on PMN-PT (lead magnesium niobate-lead titanate) substrate. The effective perpendicular anisotropy coefficient Keff is efficiently tuned via the electric field up to 2 MV/m from 2.5 × 104 to 0.8 × 104 J/m3, which leads to the change of the effective magnetic anisotropy field μ0ΔHeff = −45 mT. With a time-resolved magneto-optical Kerr effect, we observed the precession frequency change Δf = 0.8 GHz. Our simulation estimates that this value corresponds to Δf = −3 GHz and Δf/f = −0.23 in a scheme of ferromagnetic resonance measurement.",

keywords = "Ferromagnetic/piezoelectric heterostructure, Magnetostrictive material, Time-resolved magneto-optical Kerr effect",

author = "Kim, \{Ji Wan\} and Kim, \{Ju Hyun\} and You, \{Chun Yeol\} and Shin, \{Sung Chul\}",

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doi = "10.1016/j.cap.2017.03.006",

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T1 - Electric-field control of magnetic property in perpendicularly magnetized Co0.25Pd0.75/PMN-PT heterostructure

AU - Kim, Ji Wan

AU - Kim, Ju Hyun

AU - You, Chun Yeol

AU - Shin, Sung Chul

PY - 2017/7/1

Y1 - 2017/7/1

N2 - We report about the electric-field control of magnetic properties in a perpendicularly magnetized Co0.25Pd0.75 film deposited on PMN-PT (lead magnesium niobate-lead titanate) substrate. The effective perpendicular anisotropy coefficient Keff is efficiently tuned via the electric field up to 2 MV/m from 2.5 × 104 to 0.8 × 104 J/m3, which leads to the change of the effective magnetic anisotropy field μ0ΔHeff = −45 mT. With a time-resolved magneto-optical Kerr effect, we observed the precession frequency change Δf = 0.8 GHz. Our simulation estimates that this value corresponds to Δf = −3 GHz and Δf/f = −0.23 in a scheme of ferromagnetic resonance measurement.

AB - We report about the electric-field control of magnetic properties in a perpendicularly magnetized Co0.25Pd0.75 film deposited on PMN-PT (lead magnesium niobate-lead titanate) substrate. The effective perpendicular anisotropy coefficient Keff is efficiently tuned via the electric field up to 2 MV/m from 2.5 × 104 to 0.8 × 104 J/m3, which leads to the change of the effective magnetic anisotropy field μ0ΔHeff = −45 mT. With a time-resolved magneto-optical Kerr effect, we observed the precession frequency change Δf = 0.8 GHz. Our simulation estimates that this value corresponds to Δf = −3 GHz and Δf/f = −0.23 in a scheme of ferromagnetic resonance measurement.

KW - Ferromagnetic/piezoelectric heterostructure

KW - Magnetostrictive material

KW - Time-resolved magneto-optical Kerr effect

UR - https://www.scopus.com/pages/publications/85017450047

U2 - 10.1016/j.cap.2017.03.006

DO - 10.1016/j.cap.2017.03.006

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