Antiferromagnetic Domain Wall Motion Driven by Spin-Orbit Torques

Shiino, Takayuki; Oh, Se Hyeok; Haney, Paul M.; Lee, Seo Won; Go, Gyungchoon; Park, Byong‐Guk; Lee, Kyung Jin

doi:10.1103/physrevlett.117.087203

Cited by 236 publications

(237 citation statements)

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“…Finally, Selzer et al (2016) investigated the motion of antiferromagnetic domain walls in response to thermal gradients using an atomistic model. Similar to Shiino et al (2016) and Gomonay, Jungwirth, and Sinova (2016), they obtained massless motion of the domain wall due to the absence of azimuthal tilting during the motion. …”

Section: Thermally Induced Domain-wall Motionsupporting

confidence: 53%

“…This possibility is particularly interesting in insulating magnets, where spin currents are transported by spin waves rather than itinerant electrons. While most of the research in this area has (8), and (12) from the figure refer to equations defined in Shiino et al (2016) and not to equations from the present review article. From Shiino et al, 2016.…”

Section: Spin Caloritronics and Superfluiditymentioning

confidence: 99%

“…Since dipolar coupling is vanishingly small in antiferromagnets, antiferromagnetic domain walls do not exhibit Walker breakdown, thus a "massless" motion of the wall is observed (Gomonay, Jungwirth, and Sinova, 2016). Furthermore, the antiferromagnetic domain walls exhibit a relativisticlike motion, which results in a Lorentz contraction of the wall when its velocity approaches the magnon group velocity (Kim, Tserkovnyak, and Tchernyshyov, 2014;Shiino et al, 2016). In this section, we briefly introduce some of the typical antiferromagnetic textures encountered and how these textures can be measured.…”

Section: Magnetic Texturesmentioning

confidence: 99%

“…Two theoretical studies recently investigated the motion of domain walls in the presence of staggered fieldlike torques (Gomonay, Jungwirth, and Sinova, 2016) and in the case of spin Hall (dampinglike) torques (Shiino et al, 2016). The former modeled the current-driven motion of domain walls in bulk noncentrosymmetric antiferromagnet such as CuMnAs, while the latter aimed at modeling Néel walls in antiferromagnet/ normal metal bilayers.…”

Section: Moving Magnetic Textures By Spin-orbit Torquementioning

confidence: 99%

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Antiferromagnetic spintronics

et al. 2018

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Antiferromagnetic materials could represent the future of spintronic applications thanks to the numerous interesting features they combine: they are robust against perturbation due to magnetic fields, produce no stray fields, display ultrafast dynamics, and are capable of generating large magnetotransport effects. Intense research efforts over the past decade have been invested in unraveling spin transport properties in antiferromagnetic materials. Whether spin transport can be used to drive the antiferromagnetic order and how subsequent variations can be detected are some of the thrilling challenges currently being addressed. Antiferromagnetic spintronics started out with studies on spin transfer and has undergone a definite revival in the last few years with the publication of pioneering articles on the use of spin-orbit interactions in antiferromagnets. This paradigm shift offers possibilities for radically new concepts for spin manipulation in electronics. Central to these endeavors are the need for predictive models, relevant disruptive materials, and new experimental designs. This paper reviews the most prominent spintronic effects described based on theoretical and experimental analysis of antiferromagnetic materials. It also details some of the remaining bottlenecks and suggests possible avenues for future research. This review covers both spin-transfer-related effects, such as spin-transfer torque, spin penetration length, domain-wall motion, and "magnetization" dynamics, and spin-orbit related phenomena, such as (tunnel) anisotropic magnetoresistance, spin Hall, and inverse spin galvanic effects. Effects related to spin caloritronics, such as the spin Seebeck effect, are linked to the transport of magnons in antiferromagnets. The propagation of spin waves and spin superfluids in antiferromagnets is also covered.

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Section: Thermally Induced Domain-wall Motionsupporting

confidence: 53%

Section: Spin Caloritronics and Superfluiditymentioning

confidence: 99%

Section: Magnetic Texturesmentioning

confidence: 99%

Section: Moving Magnetic Textures By Spin-orbit Torquementioning

confidence: 99%

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Antiferromagnetic spintronics

et al. 2018

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“…87) Recently, a low threshold current has indeed been reported in ferrimagnetic compounds. 88,89) Furthermore, a high DW velocity was also been predicted for antiferromagnets 90,91) and experimentally reported for synthetic antiferromagnets and a ferrimagnet. 92) The DMI and spin Hall effect have also been found in ferrimagnet= heavy metal bilayers.…”

Section: Discussionmentioning

confidence: 93%

Current-driven magnetic domain wall motion and its real-time detection

Kim

Yoshimura

Ono

2017

Jpn. J. Appl. Phys.

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Current-controlled magnetic domain wall motion has opened the possibility of a novel type of shift register memory device, which has been optimistically predicted to replace existing magnetic memories. Owing to this promising prospect, intensive work has been carried out during the last few decades. In this article, we first review the progress in the study of current-induced magnetic domain wall motion. Underlying mechanisms behind the domain wall motion, which have been discovered during last few decades, as well as technological achievements are presented. We then present our recent experimental results on the real-time detection of current-driven multiple magnetic domain wall motion, which directly demonstrates the operation of a magnetic domain wall shift register.

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Domain Wall Motion in Magnetic Nanostrips

Alejos

Raposo

Martínez

2020

Materials Science and Technology

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Domain walls are the transition regions between two magnetic domains. These objects have been very relevant during the last decade, not only due to their intrinsic interest in the development of novel spintronics devices but also because of their fundamental interest. The study of domain wall has been linked to the research on novel spin-orbit coupling phenomena such as the Dzyaloshinskii-Moriya interaction and the spin Hall effect amount others. Domain walls can be nucleated in ferromagnetic nanostrips and can be driven by conventional magnetic fields and spin currents due to the injection of electrical pulses, which make them very promising for technological applications of recording and logic devices. In this review, based on full micromagnetic simulations supported by extended one-dimensional models, we describe the static and dynamic properties of domain walls in thin ferromagnetic and ferrimagnetic wires with perpendicular magnetic anisotropy. The present chapter aims to provide a fundamental theoretical description of the fundaments of domain walls, and the numerical tools and models which allow describing the DW dynamics in previous and future experimental setups.

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Antiferromagnetic Domain Wall Motion Driven by Spin-Orbit Torques

Cited by 236 publications

References 50 publications

Antiferromagnetic spintronics

Antiferromagnetic spintronics

Current-driven magnetic domain wall motion and its real-time detection

Domain Wall Motion in Magnetic Nanostrips

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