Quantification of strain and charge co-mediated magnetoelectric coupling on ultra-thin Permalloy/PMN-PT interface

Tianxiang Nan; Ziyao Zhou; Ming Liu; Xi Yang; Yuan Gao; Badih A. Assaf; Hwaider Lin; Siddharth Velu; Xinjun Wang; Haosu Luo; Jimmy Chen; Saad Akhtar; Edward Hu; Rohit Rajiv; Kavin Krishnan; Shalini Sreedhar; Don Heiman; Brandon M. Howe; Gail J. Brown; Nian X. Sun

doi:10.1038/srep03688

Quantification of strain and charge co-mediated magnetoelectric coupling on ultra-thin Permalloy/PMN-PT interface

Tianxiang Nan
, Ziyao Zhou
, Ming Liu
, Xi Yang
, Yuan Gao
, Badih A. Assaf
, Hwaider Lin
, Siddharth Velu
, Xinjun Wang
, Haosu Luo
, Jimmy Chen
, Saad Akhtar
, Edward Hu
, Rohit Rajiv
, Kavin Krishnan
, Shalini Sreedhar
, Don Heiman
, Brandon M. Howe
, Gail J. Brown
, Nian X. Sun

Northeastern University
Air Force Research Laboratory
CAS - Shanghai Institute of Ceramics
Winchester High School
Foxborough High School
Boston Latin School
Phillips Exeter Academy
Advanced Math and Science Academy Charter School
Weston High School

科研成果: 期刊稿件 › 文章 › 同行评审

191 引用（Scopus）

摘要

Strain and charge co-mediated magnetoelectric coupling are expected in ultra-thin ferromagnetic/ferroelectric multiferroic heterostructures, which could lead to significantly enhanced magnetoelectric coupling. It is however challenging to observe the combined strain charge mediated magnetoelectric coupling, and difficult in quantitatively distinguish these two magnetoelectric coupling mechanisms. We demonstrated in this work, the quantification of the coexistence of strain and surface charge mediated magnetoelectric coupling on ultra-thin Ni_0.79Fe_0.21/PMN-PT interface by using a Ni_0.79Fe_0.21/Cu/PMN-PT heterostructure with only strain-mediated magnetoelectric coupling as a control. The NiFe/PMN-PT heterostructure exhibited a high voltage induced effective magnetic field change of 375 Oe enhanced by the surface charge at the PMN-PT interface. Without the enhancement of the charge-mediated magnetoelectric effect by inserting a Cu layer at the PMN-PT interface, the electric field modification of effective magnetic field was 202 Oe. By distinguishing the magnetoelectric coupling mechanisms, a pure surface charge modification of magnetism shows a strong correlation to polarization of PMN-PT. A non-volatile effective magnetic field change of 104 Oe was observed at zero electric field originates from the different remnant polarization state of PMN-PT. The strain and charge co-mediated magnetoelectric coupling in ultra-thin magnetic/ferroelectric heterostructures could lead to power efficient and non-volatile magnetoelectric devices with enhanced magnetoelectric coupling.

源语言	英语
期刊论文编号	3688
期刊	Scientific Reports
卷	4
DOI	https://doi.org/10.1038/srep03688
出版状态	已出版 - 1 4月 2015
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Nan, T., Zhou, Z., Liu, M., Yang, X., Gao, Y., Assaf, B. A., Lin, H., Velu, S., Wang, X., Luo, H., Chen, J., Akhtar, S., Hu, E., Rajiv, R., Krishnan, K., Sreedhar, S., Heiman, D., Howe, B. M., Brown, G. J., & Sun, N. X. (2015). Quantification of strain and charge co-mediated magnetoelectric coupling on ultra-thin Permalloy/PMN-PT interface. Scientific Reports, 4, 期刊论文 3688. https://doi.org/10.1038/srep03688

@article{9a7649454ec344d7a0633c30e2f4a38a,

title = "Quantification of strain and charge co-mediated magnetoelectric coupling on ultra-thin Permalloy/PMN-PT interface",

abstract = "Strain and charge co-mediated magnetoelectric coupling are expected in ultra-thin ferromagnetic/ferroelectric multiferroic heterostructures, which could lead to significantly enhanced magnetoelectric coupling. It is however challenging to observe the combined strain charge mediated magnetoelectric coupling, and difficult in quantitatively distinguish these two magnetoelectric coupling mechanisms. We demonstrated in this work, the quantification of the coexistence of strain and surface charge mediated magnetoelectric coupling on ultra-thin Ni0.79Fe0.21/PMN-PT interface by using a Ni0.79Fe0.21/Cu/PMN-PT heterostructure with only strain-mediated magnetoelectric coupling as a control. The NiFe/PMN-PT heterostructure exhibited a high voltage induced effective magnetic field change of 375 Oe enhanced by the surface charge at the PMN-PT interface. Without the enhancement of the charge-mediated magnetoelectric effect by inserting a Cu layer at the PMN-PT interface, the electric field modification of effective magnetic field was 202 Oe. By distinguishing the magnetoelectric coupling mechanisms, a pure surface charge modification of magnetism shows a strong correlation to polarization of PMN-PT. A non-volatile effective magnetic field change of 104 Oe was observed at zero electric field originates from the different remnant polarization state of PMN-PT. The strain and charge co-mediated magnetoelectric coupling in ultra-thin magnetic/ferroelectric heterostructures could lead to power efficient and non-volatile magnetoelectric devices with enhanced magnetoelectric coupling.",

author = "Tianxiang Nan and Ziyao Zhou and Ming Liu and Xi Yang and Yuan Gao and Assaf, \{Badih A.\} and Hwaider Lin and Siddharth Velu and Xinjun Wang and Haosu Luo and Jimmy Chen and Saad Akhtar and Edward Hu and Rohit Rajiv and Kavin Krishnan and Shalini Sreedhar and Don Heiman and Howe, \{Brandon M.\} and Brown, \{Gail J.\} and Sun, \{Nian X.\}",

year = "2015",

month = apr,

day = "1",

doi = "10.1038/srep03688",

language = "英语",

volume = "4",

journal = "Scientific Reports",

issn = "2045-2322",

publisher = "Nature Research",

}

Nan, T, Zhou, Z, Liu, M, Yang, X, Gao, Y, Assaf, BA, Lin, H, Velu, S, Wang, X, Luo, H, Chen, J, Akhtar, S, Hu, E, Rajiv, R, Krishnan, K, Sreedhar, S, Heiman, D, Howe, BM, Brown, GJ & Sun, NX 2015, 'Quantification of strain and charge co-mediated magnetoelectric coupling on ultra-thin Permalloy/PMN-PT interface', Scientific Reports, 卷 4, 3688. https://doi.org/10.1038/srep03688

TY - JOUR

T1 - Quantification of strain and charge co-mediated magnetoelectric coupling on ultra-thin Permalloy/PMN-PT interface

AU - Nan, Tianxiang

AU - Zhou, Ziyao

AU - Liu, Ming

AU - Yang, Xi

AU - Gao, Yuan

AU - Assaf, Badih A.

AU - Lin, Hwaider

AU - Velu, Siddharth

AU - Wang, Xinjun

AU - Luo, Haosu

AU - Chen, Jimmy

AU - Akhtar, Saad

AU - Hu, Edward

AU - Rajiv, Rohit

AU - Krishnan, Kavin

AU - Sreedhar, Shalini

AU - Heiman, Don

AU - Howe, Brandon M.

AU - Brown, Gail J.

AU - Sun, Nian X.

PY - 2015/4/1

Y1 - 2015/4/1

N2 - Strain and charge co-mediated magnetoelectric coupling are expected in ultra-thin ferromagnetic/ferroelectric multiferroic heterostructures, which could lead to significantly enhanced magnetoelectric coupling. It is however challenging to observe the combined strain charge mediated magnetoelectric coupling, and difficult in quantitatively distinguish these two magnetoelectric coupling mechanisms. We demonstrated in this work, the quantification of the coexistence of strain and surface charge mediated magnetoelectric coupling on ultra-thin Ni0.79Fe0.21/PMN-PT interface by using a Ni0.79Fe0.21/Cu/PMN-PT heterostructure with only strain-mediated magnetoelectric coupling as a control. The NiFe/PMN-PT heterostructure exhibited a high voltage induced effective magnetic field change of 375 Oe enhanced by the surface charge at the PMN-PT interface. Without the enhancement of the charge-mediated magnetoelectric effect by inserting a Cu layer at the PMN-PT interface, the electric field modification of effective magnetic field was 202 Oe. By distinguishing the magnetoelectric coupling mechanisms, a pure surface charge modification of magnetism shows a strong correlation to polarization of PMN-PT. A non-volatile effective magnetic field change of 104 Oe was observed at zero electric field originates from the different remnant polarization state of PMN-PT. The strain and charge co-mediated magnetoelectric coupling in ultra-thin magnetic/ferroelectric heterostructures could lead to power efficient and non-volatile magnetoelectric devices with enhanced magnetoelectric coupling.

AB - Strain and charge co-mediated magnetoelectric coupling are expected in ultra-thin ferromagnetic/ferroelectric multiferroic heterostructures, which could lead to significantly enhanced magnetoelectric coupling. It is however challenging to observe the combined strain charge mediated magnetoelectric coupling, and difficult in quantitatively distinguish these two magnetoelectric coupling mechanisms. We demonstrated in this work, the quantification of the coexistence of strain and surface charge mediated magnetoelectric coupling on ultra-thin Ni0.79Fe0.21/PMN-PT interface by using a Ni0.79Fe0.21/Cu/PMN-PT heterostructure with only strain-mediated magnetoelectric coupling as a control. The NiFe/PMN-PT heterostructure exhibited a high voltage induced effective magnetic field change of 375 Oe enhanced by the surface charge at the PMN-PT interface. Without the enhancement of the charge-mediated magnetoelectric effect by inserting a Cu layer at the PMN-PT interface, the electric field modification of effective magnetic field was 202 Oe. By distinguishing the magnetoelectric coupling mechanisms, a pure surface charge modification of magnetism shows a strong correlation to polarization of PMN-PT. A non-volatile effective magnetic field change of 104 Oe was observed at zero electric field originates from the different remnant polarization state of PMN-PT. The strain and charge co-mediated magnetoelectric coupling in ultra-thin magnetic/ferroelectric heterostructures could lead to power efficient and non-volatile magnetoelectric devices with enhanced magnetoelectric coupling.

UR - https://www.scopus.com/pages/publications/84905478496

U2 - 10.1038/srep03688

DO - 10.1038/srep03688

M3 - 文章

AN - SCOPUS:84905478496

SN - 2045-2322

VL - 4

JO - Scientific Reports

JF - Scientific Reports

M1 - 3688

ER -

Quantification of strain and charge co-mediated magnetoelectric coupling on ultra-thin Permalloy/PMN-PT interface

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