Electrical control of antiferromagnetic metal up to 15 nm

Zhang, PengXiang; Yin, GuFan; Wang, Yuyan; Cui, Bin; Pan, Feng; Song, Cheng

doi:10.1007/s11433-016-0137-4

Cited by 10 publications

(8 citation statements)

References 32 publications

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“…Thus, the voltage control of EB would become weaker as the thickness of the AFM IrMn increases. A similar effect is observed in AFM FeMn but with a longer depth of ~15 nm [69]. Recent progress in the voltage control of the exchange spring in AFM metals through an ionic liquid provides a novel thinking for realizing the exchange-coupling-mediated VCM.…”

Section: Voltage Control Of Exchange Springs In Antiferromagnetic Alloyssupporting

confidence: 56%

“…Although the short screening length due to the high conductivity of metals limits the electric field effect, a breakthrough was achieved via enhancement of the electric field with the introduction of ferroelectric (FE) materials and electrolytes as the dielectric materials. At the same time, an effective control of magnetism by external voltages has been observed recently in some AFM metals (e.g., IrMn and FeMn) and metals with an FM-AFM transition (e.g., FeRh), which enriches the metallic system for VCM [69][70][71]. To summarize this research in magnetic metals, the device structure, magnetoelectric coupling coefficient (α), temperature (T), coupling mechanism, and corresponding results of voltage control are listed in Table 1.…”

Section: Magnetic Metalsmentioning

confidence: 80%

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Recent progress in voltage control of magnetism: Materials, mechanisms, and performance

Song

Cui

et al. 2017

Progress in Materials Science

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Voltage control of magnetism (VCM) is attracting increasing interest and exciting significant research activity driven by its profound physics and enormous potential for application. This review article aims to provide a comprehensive review of recent progress in VCM in different thin films. We first present a brief summary of the modulation of magnetism by electric fields and describe its discovery, development, classification, mechanism, and potential applications. In the second part, we focus on the classification of VCM from the viewpoint of materials, where both the magnetic medium and dielectric gating materials, and their influences on magnetic modulation efficiency are systematically described. In the third part, the nature of VCM is discussed in detail, including the conventional mechanisms of charge, strain, and exchange coupling at the interfaces of heterostructures, as well as the emergent models of orbital reconstruction and electrochemical effect. The fourth part mainly illustrates the typical performance characteristics of VCM, and discusses, in particular, * Corresponding author. Tel: +86-10-62781275; fax: +86-10-62771160 E-mail address: songcheng@mail.tsinghua.edu.cn † Present at Max-Planck Institute of Microstructure Physics, Weinberg 2, D-06120Halle, Germany 2 its promising application for reducing power consumption and realizing high-density memory in several device configurations. The present review concludes with a discussion of the challenges and future prospects of VCM, which will inspire more in-depth research and advance the practical applications of this field.

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Section: Voltage Control Of Exchange Springs In Antiferromagnetic Alloyssupporting

confidence: 56%

Section: Magnetic Metalsmentioning

confidence: 80%

Recent progress in voltage control of magnetism: Materials, mechanisms, and performance

Song

Cui

et al. 2017

Progress in Materials Science

Self Cite

410

267

View full text Add to dashboard Cite

show abstract

“…However, the manipulation of IrMn by the electric field becomes weaker with increasing thickness of IrMn and disappears if the thickness exceeds the domain wall width (about 6 nm) [142]. A similar phenomenon is also discovered in FeMn, with a longer depth of domain wall width (about 15 nm) due to the larger magnetic anisotropy of the top FeMn layer [147]. The progress in the electrical control of antiferromagnets through an ionic liquid provides a novel method for manipulation combining the electric field and exchange spring [148].…”

Section: Electrical Control Of Antiferromagnetsmentioning

confidence: 54%

How to manipulate magnetic states of antiferromagnets

et al. 2018

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Antiferromagnetic materials, which have drawn considerable attention recently, have fascinating features: they are robust against perturbation, produce no stray fields, and exhibit ultrafast dynamics. Discerning how to efficiently manipulate the magnetic state of an antiferromagnet is key to the development of antiferromagnetic spintronics. In this review, we introduce four main methods (magnetic, strain, electrical, and optical) to mediate the magnetic states and elaborate on intrinsic origins of different antiferromagnetic materials. Magnetic control includes a strong magnetic field, exchange bias, and field cooling, which are traditional and basic. Strain control involves the magnetic anisotropy effect or metamagnetic transition. Electrical control can be divided into two parts, electric field and electric current, both of which are convenient for practical applications. Optical control includes thermal and electronic excitation, an inertia-driven mechanism, and terahertz laser control, with the potential for ultrafast antiferromagnetic manipulation. This review sheds light on effective usage of antiferromagnets and provides a new perspective on antiferromagnetic spintronics.

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“…The utilization of ionic liquid as the gating medium further enhances the efficiency of electric field-induced modulation on complex oxide materials of La x Sr 1−x MnO, which shows tunable Curie temperature, enhanced saturation magnetization and obvious changes in the electrical resistance. [26,27,[41][42][43][44][45]…”

Section: Prospective Articlementioning

confidence: 99%