Full 180° magnetization reversal with electric fields.
Full 180° magnetization reversal with electric fields.
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通过电场实现 180 度磁化反转
DOI:
10.1038/srep07507
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发表时间:
2014-12-16
影响因子:
4.6
通讯作者:
Nan CW
中科院分区:
文献类型:
--
作者:
Wang JJ;Hu JM;Ma J;Zhang JX;Chen LQ;Nan CW
Achieving 180° magnetization reversal with an electric field rather than a current or magnetic field is a fundamental challenge and represents a technological breakthrough towards new memory cell designs. Here we propose a mesoscale morphological engineering approach to accomplishing full 180° magnetization reversals with electric fields by utilizing both the in-plane piezostrains and magnetic shape anisotropy of a multiferroic heterostructure. Using phase-field simulations, we examined a patterned single-domain nanomagnet with four-fold magnetic axis on a ferroelectric layer with electric-field-induced uniaxial strains. We demonstrated that the uniaxial piezostrains, if non-collinear to the magnetic easy axis of the nanomagnet at certain angles, induce two successive, deterministic 90° magnetization rotations, thereby leading to full 180° magnetization reversals.
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影响因子:
4.6
作者:
Roy, Kuntal;Bandyopadhyay, Supriyo;Atulasimha, Jayasimha
通讯作者:
Atulasimha, Jayasimha
影响因子:
2.1
作者:
SCHABES, ME;AHARONI, A
通讯作者:
AHARONI, A
影响因子:
4
作者:
Nan, T. X.;Zhou, Z. Y.;Sun, N. X.
通讯作者:
Sun, N. X.
影响因子:
29.4
作者:
Lou, Jing;Liu, Ming;Sun, Nian X.
通讯作者:
Sun, Nian X.
影响因子:
8.6
作者:
Buzzi, M.;Chopdekar, R. V.;Nolting, F.
通讯作者:
Nolting, F.