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Issue 40, 2018
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Electric-field control of non-volatile 180° switching of the unidirectional anisotropy field in a multiferroic heterostructure

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Abstract

We investigate the room-temperature, electric-field-mediated, non-volatile 180° switching of the unidirectional anisotropy field in an IrMn/CoFeB/Ta/Pb(Mg1/3Nb2/3)O3–PbTiO3 heterostructure. The variation in exchange bias under different electric fields appears clearly in the magnetic hysteresis loops. The remnant magnetization as a function of electric field, as determined by static magnetic measurements, exhibits a non-volatile behavior, which is consistent with the results of the ferromagnetic resonance field as a function of electric field. Moreover, the measured ferromagnetic resonance shows that the uniaxial magnetic anisotropy field is non-volatile and the unidirectional anisotropy field undergoes 180° switching that can be acquired and separated distinctly. This result is attributed to the piezo-strain effect. The electric-field-mediated non-volatile 180° switching of the unidirectional anisotropy field paves the way for sensors and other spintronic devices.

Graphical abstract: Electric-field control of non-volatile 180° switching of the unidirectional anisotropy field in a multiferroic heterostructure

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Publication details

The article was received on 10 Aug 2018, accepted on 10 Sep 2018 and first published on 10 Sep 2018


Article type: Paper
DOI: 10.1039/C8CP05106B
Citation: Phys. Chem. Chem. Phys., 2018,20, 25854-25860
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    Electric-field control of non-volatile 180° switching of the unidirectional anisotropy field in a multiferroic heterostructure

    P. Li, C. Zhou, C. Cao, W. Wang and C. Jiang, Phys. Chem. Chem. Phys., 2018, 20, 25854
    DOI: 10.1039/C8CP05106B

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