Evaluating the electro-optical effect in alternating current-voltage- modulated Kerr response for multiferroic heterostructures

Li Shu; Ya Gao; Jia Mian Hu; Zheng Li; Yang Shen; Yuanhua Lin; C. W. Nan

doi:10.1063/1.4833573

Evaluating the electro-optical effect in alternating current-voltage- modulated Kerr response for multiferroic heterostructures

Li Shu, Ya Gao, Jia Mian Hu, Zheng Li, Yang Shen, Yuanhua Lin, C. W. Nan

Materials Science and Engineering

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

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Abstract

Voltage-modified Kerr magnetometer has been widely used to measure the voltage-modulated magnetic properties in multiferroic magnetic/ferroelectric heterostructures, where the Kerr signal change is considered to be in proportion to magnetization change, i.e., the magneto-optical Kerr effect. However, the total Kerr signal changes might also incorporate contribution from the electro-optical effect of the ferroelectric layer in the multiferroic heterostructure. Here, we evaluate quantitatively, by combining analytical calculations with experimental observations, such electro-optical contribution in the total voltage-induced Kerr signal changes with comparison to those from Kerr effect via converse magnetoelectric coupling. Influences of several parameters, including the magnetic film thickness on the Kerr signal changes, are also investigated.

Original language	English (US)
Article number	204102
Journal	Journal of Applied Physics
Volume	114
Issue number	20
DOIs	https://doi.org/10.1063/1.4833573
State	Published - Nov 28 2013

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1063/1.4833573

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title = "Evaluating the electro-optical effect in alternating current-voltage- modulated Kerr response for multiferroic heterostructures",

abstract = "Voltage-modified Kerr magnetometer has been widely used to measure the voltage-modulated magnetic properties in multiferroic magnetic/ferroelectric heterostructures, where the Kerr signal change is considered to be in proportion to magnetization change, i.e., the magneto-optical Kerr effect. However, the total Kerr signal changes might also incorporate contribution from the electro-optical effect of the ferroelectric layer in the multiferroic heterostructure. Here, we evaluate quantitatively, by combining analytical calculations with experimental observations, such electro-optical contribution in the total voltage-induced Kerr signal changes with comparison to those from Kerr effect via converse magnetoelectric coupling. Influences of several parameters, including the magnetic film thickness on the Kerr signal changes, are also investigated.",

author = "Li Shu and Ya Gao and Hu, {Jia Mian} and Zheng Li and Yang Shen and Yuanhua Lin and Nan, {C. W.}",

note = "Funding Information: This work was supported by the NSF of China (Grant Nos. 11234005, 51332001, and 51221291), and the National Basic Research Program of China (Grant No. 2009CB623303).",

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doi = "10.1063/1.4833573",

language = "English (US)",

volume = "114",

journal = "Journal of Applied Physics",

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T1 - Evaluating the electro-optical effect in alternating current-voltage- modulated Kerr response for multiferroic heterostructures

AU - Shu, Li

AU - Gao, Ya

AU - Hu, Jia Mian

AU - Li, Zheng

AU - Shen, Yang

AU - Lin, Yuanhua

AU - Nan, C. W.

N1 - Funding Information: This work was supported by the NSF of China (Grant Nos. 11234005, 51332001, and 51221291), and the National Basic Research Program of China (Grant No. 2009CB623303).

PY - 2013/11/28

Y1 - 2013/11/28

N2 - Voltage-modified Kerr magnetometer has been widely used to measure the voltage-modulated magnetic properties in multiferroic magnetic/ferroelectric heterostructures, where the Kerr signal change is considered to be in proportion to magnetization change, i.e., the magneto-optical Kerr effect. However, the total Kerr signal changes might also incorporate contribution from the electro-optical effect of the ferroelectric layer in the multiferroic heterostructure. Here, we evaluate quantitatively, by combining analytical calculations with experimental observations, such electro-optical contribution in the total voltage-induced Kerr signal changes with comparison to those from Kerr effect via converse magnetoelectric coupling. Influences of several parameters, including the magnetic film thickness on the Kerr signal changes, are also investigated.

AB - Voltage-modified Kerr magnetometer has been widely used to measure the voltage-modulated magnetic properties in multiferroic magnetic/ferroelectric heterostructures, where the Kerr signal change is considered to be in proportion to magnetization change, i.e., the magneto-optical Kerr effect. However, the total Kerr signal changes might also incorporate contribution from the electro-optical effect of the ferroelectric layer in the multiferroic heterostructure. Here, we evaluate quantitatively, by combining analytical calculations with experimental observations, such electro-optical contribution in the total voltage-induced Kerr signal changes with comparison to those from Kerr effect via converse magnetoelectric coupling. Influences of several parameters, including the magnetic film thickness on the Kerr signal changes, are also investigated.

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ER -

Evaluating the electro-optical effect in alternating current-voltage- modulated Kerr response for multiferroic heterostructures

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