Abstract：
:Taking advantage of the magnetoelectric and its inverse effect, this article demonstrates strain-mediated magnetoelectric write and read operations simultaneously in Co60Fe20B20/Pb(Mg1/3Nb2/3)0.7Ti0.3O3 heterostructures based on a pseudo-magnetization µ ≡ mx2 - my2. By applying an external DC-voltage across a (011)-cut PMN-PT substrate, the ferroelectric polarization is re-oriented, which results in an anisotropic in-plane strain that transfers to the CoFeB thin film and changes its magnetic anisotropy Hk. The change in Hk in-turn results in a 90° rotation of the magnetic easy axis for sufficiently high voltages. Simultaneously, the inverse effect is employed to read changes of the magnetic properties. The change of magnetization in ferromagnetic (FM) layer induces an elastic stress in the piezoelectric (PE) layer, which generates a PE potential that can be used to readout the magnetic state of the FM layer. The experimental results are in excellent qualitative agreement with an equivalent circuit model that considers how magnetic properties are electrically controlled in such a PE/FM heterostructure and how a back-voltage is generated due to changing magnetic properties in a self-consistent model. We demonstrated that a change of easy axis of magnetization due to an applied voltage can be directly used for information processing, which is essential for future ME based devices.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Shen T,Ostwal V,Camsari KY,Appenzeller Jdoi
10.1038/s41598-020-67776-ysubject
Has Abstractpub_date
2020-07-01 00:00:00pages
10791issue
1issn
2045-2322pii
10.1038/s41598-020-67776-yjournal_volume
10pub_type
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2015-11-30 00:00:00
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pub_type： 杂志文章
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pub_type： 已发布勘误
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2016-07-15 00:00:00
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pub_type： 杂志文章
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journal_title：Scientific reports
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更新日期：2016-11-14 00:00:00
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pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 已发布勘误
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更新日期：2018-02-16 00:00:00
