This paper reports that the in situ growth magnetic field (Hg) during magnetic-phase CoFeB deposition impacts the electric-field control of magnetic anisotropy in Co40Fe40B20/(011)-Pb(Mg1/3Nb2/3)0.7Ti0.3O3 [CoFeB/(011)-PMN-PT] composite multiferroic heterostructures at room temperature. In the Hg1 mode (in situ Hg along the direction of the ferroelectric PMN-PT substrate), the electric-field-controlled modulation ratios of the magnetic coercivity HC and saturation magnetic field HS are approximately −47% and +156%, respectively. However, in the Hg2 mode (in situ Hg along the [100] direction of the ferroelectric PMN-PT substrate) of the CoFeB/(011)-PMN-PT multiferroic heterostructure, the electric-field-controlled modulation ratios of the magnetic coercivity HC and saturation magnetic field HS can reach as high as +162% and +393%, respectively. Moreover, the electric-field-controlled magnetic coercive field HC exhibits a butterfly shape when plotted versus the applied electric fields in both modes, which matches the in-plane butterfly strain loop of the ferroelectric PMN-PT substrate. However, the electric-field-controlled saturation magnetic field HS presents a square loop, which is very consistent with the ferroelectric loop of the PMN-PT substrate. This result may be ascribed to the distinct pathway of the ferroelastic domain switching in the (011)-oriented PMN-PT substrate. This study provides a new idea for the design of spintronic devices based on multiferroic heterostructures.
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21 August 2023
Research Article|
August 18 2023
Giant room-temperature modulation of magnetic anisotropy by electric fields in CoFeB/(011)-PMN-PT multiferroic heterostructures with two distinct initial magnetic anisotropies
Lanping He;
Lanping He
(Data curation, Methodology, Validation, Writing – original draft)
1
Department of Physics, and Lab of Low-dimensional Magnetism and Spintronic Devices, School of Physics, Hefei University of Technology
, Hefei, Anhui 230009, People's Republic of China
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Cangmin Wang;
Cangmin Wang
(Data curation, Methodology)
1
Department of Physics, and Lab of Low-dimensional Magnetism and Spintronic Devices, School of Physics, Hefei University of Technology
, Hefei, Anhui 230009, People's Republic of China
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Shaoting Wang;
Shaoting Wang
(Investigation, Software, Visualization)
1
Department of Physics, and Lab of Low-dimensional Magnetism and Spintronic Devices, School of Physics, Hefei University of Technology
, Hefei, Anhui 230009, People's Republic of China
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Wanyu Li;
Wanyu Li
(Formal analysis, Investigation)
1
Department of Physics, and Lab of Low-dimensional Magnetism and Spintronic Devices, School of Physics, Hefei University of Technology
, Hefei, Anhui 230009, People's Republic of China
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Yang Jiang;
Yang Jiang
(Formal analysis, Investigation, Visualization)
2
School of Microelectronics, Hefei University of Technology
, Hefei, Anhui 230009, People's Republic of China
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Weifeng Ge;
Weifeng Ge
(Formal analysis, Writing – review & editing)
1
Department of Physics, and Lab of Low-dimensional Magnetism and Spintronic Devices, School of Physics, Hefei University of Technology
, Hefei, Anhui 230009, People's Republic of China
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Linlin An
;
Linlin An
(Writing – review & editing)
1
Department of Physics, and Lab of Low-dimensional Magnetism and Spintronic Devices, School of Physics, Hefei University of Technology
, Hefei, Anhui 230009, People's Republic of China
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Huaili Qiu;
Huaili Qiu
(Writing – review & editing)
1
Department of Physics, and Lab of Low-dimensional Magnetism and Spintronic Devices, School of Physics, Hefei University of Technology
, Hefei, Anhui 230009, People's Republic of China
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Meixia Chen;
Meixia Chen
(Writing – review & editing)
1
Department of Physics, and Lab of Low-dimensional Magnetism and Spintronic Devices, School of Physics, Hefei University of Technology
, Hefei, Anhui 230009, People's Republic of China
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Yuanjun Yang
;
Yuanjun Yang
a)
(Conceptualization, Formal analysis, Investigation, Project administration)
1
Department of Physics, and Lab of Low-dimensional Magnetism and Spintronic Devices, School of Physics, Hefei University of Technology
, Hefei, Anhui 230009, People's Republic of China
a)Authors to whom correspondence should be addressed: yangyuanjun@hfut.edu.cn and wanglan@hfut.edu.cn
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Lan Wang
Lan Wang
a)
(Conceptualization, Resources, Supervision)
1
Department of Physics, and Lab of Low-dimensional Magnetism and Spintronic Devices, School of Physics, Hefei University of Technology
, Hefei, Anhui 230009, People's Republic of China
a)Authors to whom correspondence should be addressed: yangyuanjun@hfut.edu.cn and wanglan@hfut.edu.cn
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a)Authors to whom correspondence should be addressed: yangyuanjun@hfut.edu.cn and wanglan@hfut.edu.cn
J. Appl. Phys. 134, 074101 (2023)
Article history
Received:
May 29 2023
Accepted:
August 02 2023
Citation
Lanping He, Cangmin Wang, Shaoting Wang, Wanyu Li, Yang Jiang, Weifeng Ge, Linlin An, Huaili Qiu, Meixia Chen, Yuanjun Yang, Lan Wang; Giant room-temperature modulation of magnetic anisotropy by electric fields in CoFeB/(011)-PMN-PT multiferroic heterostructures with two distinct initial magnetic anisotropies. J. Appl. Phys. 21 August 2023; 134 (7): 074101. https://doi.org/10.1063/5.0159946
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