Switching local magnetization by electric-field-induced domain wall motion

Kakizakai, Haruka; Ando, Fuyuki; Koyama, Tanetoshi; Yamada, Keitaro; Kawaguchi, Masashi; Kim, S.; Kim, K. J.; Moriyama, Takahiro; Chiba, Daichi; Ono, Teruo

doi:10.7567/apex.9.063004

Cited by 10 publications

(8 citation statements)

References 23 publications

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“…7,8 Next, we observe magnetic domain structures at demagnetized state by a polar magnetooptical Kerr effect (MOKE) microscope. [28][29][30] We demagnetize the CoFeB by applying an alternative perpendicular magnetic field with exponentially decaying amplitude starting from 20 mT. We record differential image between the demagnetized state and remanent state after the application of dc magnetic field to saturate the magnetization.…”

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confidence: 99%

Effect of electric-field modulation of magnetic parameters on domain structure in MgO/CoFeB

et al. 2016

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We observe magnetic domain structures of MgO/CoFeB with a perpendicular magnetic easy axis under an electric field. The domain structure shows a maze pattern with electric-field dependent isotropic period. The analysis of the period indicates a major role of the electric-field modulation of interfacial magnetic anisotropy for the observation and possible contribution from electric-field modulation of the exchange stiffness constant.

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confidence: 99%

Effect of electric-field modulation of magnetic parameters on domain structure in MgO/CoFeB

et al. 2016

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“…[ 48 ] Signifi cant domain wall motion has also been observed recently in ferromagnetic metal thin fi lms driven by electric fi elds. [49][50][51] In nanoionics-based RS devices, the ion migration can be speeded up exponentially and RS switching can be achieved with nanoseconds. [ 5 ] Indeed, Figure 4 a shows that the LFO devices can be SET and RESET using 300 ns pulses (with higher switching speed possible with higher pulse amplitudes).…”

Section: Communicationmentioning

confidence: 99%

In Situ Nanoscale Electric Field Control of Magnetism by Nanoionics

et al. 2016

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Direct, nonvolatile, and reversible control of nanomagnetism in solid-state ferromagnetic thin films is achieved by controlling the chemical composition of the film through field-driven ion redistribution. The electric field-driven de-intercalation/intercalation of lithium ions can result in ≈100% modulation of the magnetization and drives domain wall motion over ≈100 nm. High-speed and multilevel magnetic information storage is further demonstrated.

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“…Significant progress has been made in E-field control of macroscopic magnetic properties of multiferroic heterostructures, including the magnetic anisotropy [10,11], the exchange bias [12,13], the magnetoresistance [14,15], the magnetic permeability [16], and the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction [17], etc. In consideration of the potential applications in micro/nano devices, recent attention has been turned toward the E-field manipulation of micromagnetic elements, such as magnetic domains [18][19][20][21]. The reversible electric-field-driven magnetic domain-wall motion [22,23], and E-field control of the domain-wall mobility [24,25], have been demonstrated in different multiferroic heterostructures with simple magnetic domain structures.…”

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confidence: 99%

Vector analysis of electric-field-induced antiparallel magnetic domain evolution in ferromagnetic/ferroelectric heterostructures

Zhao¹,

Hu²,

Wu³

et al. 2021

J Adv Ceram

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Electric field (E-field) control of magnetism based on magnetoelectric coupling is one of the promising approaches for manipulating the magnetization with low power consumption. The evolution of magnetic domains under in-situ E-fields is significant for the practical applications in integrated micro/nano devices. Here, we report the vector analysis of the E-field-driven antiparallel magnetic domain evolution in FeCoSiB/PMN-PT(011) multiferroic heterostructures via in-situ quantitative magneto-optical Kerr microscope. It is demonstrated that the magnetic domains can be switched to both the 0° and 180° easy directions at the same time by E-fields, resulting in antiparallel magnetization distribution in ferromagnetic/ferroelectric heterostructures. This antiparallel magnetic domain evolution is attributed to energy minimization with the uniaxial strains by E-fields which can induce the rotation of domains no more than 90°. Moreover, domains can be driven along only one or both easy axis directions by reasonably selecting the initial magnetic domain distribution. The vector analysis of magnetic domain evolution can provide visual insights into the strain-mediated magnetoelectric effect, and promote the fundamental understanding of electrical regulation of magnetism.

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Switching local magnetization by electric-field-induced domain wall motion

Cited by 10 publications

References 23 publications

Effect of electric-field modulation of magnetic parameters on domain structure in MgO/CoFeB

Effect of electric-field modulation of magnetic parameters on domain structure in MgO/CoFeB

In Situ Nanoscale Electric Field Control of Magnetism by Nanoionics

Vector analysis of electric-field-induced antiparallel magnetic domain evolution in ferromagnetic/ferroelectric heterostructures

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