Manipulations of Spin Waves by Photoelectrons in Ferromagnetic/Non‐Ferromagnetic Alloyed Film

Zhao, Meng; Zhao, Yifan; Li, Yaojin; He, Zhexi; Du, Yujing; Jiang, Yuxuan; Wu, Shaoyuan; Wang, Chenying; Zhao, Libo; Jiang, Zhuangde; Liu, Ming; Dong, Guohua

doi:10.1002/adma.202303810

Cited by 3 publications

(5 citation statements)

References 50 publications

(71 reference statements)

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“…Si/Ta/Co 60 Al 40 / PC 71 BM:PTB7-Th/Pt heterojunction photovoltaic tunable spin-wave devices were prepared as shown in Figure 10f, and the reversible modulation of the spin wave was achieved with a modulation angle of 2°of the critical angle. 212 The control of the spin-wave resonance by natural light can be understood as a change in the effective surface magnetic anisotropy induced by photoelectron doping (Figure 10g). The stable modulation of the spin-wave was realized by natural light illumination, as shown in Figure 10h, confirming the nonvolatile, reversible switching behavior.…”

Section: Sunlight Modulation Of Magnetismmentioning

confidence: 99%

“…(h) Reversible body mode spin-wave resonance modulation via visible light before illumination, at 100 mW/cm 2 and after illumination. Reprinted with permission from ref . Copyright 2023, Wiley-VCH GmbH.…”

Section: Development Of Optical Controllable Magnetism Devicesmentioning

confidence: 99%

“…Zhao et al investigated the effect of natural light on spin-wave tunability in Co60Al40 alloy films. Si/Ta/Co 60 Al 40 /PC 71 BM:PTB7-Th/Pt heterojunction photovoltaic tunable spin-wave devices were prepared as shown in Figure f, and the reversible modulation of the spin wave was achieved with a modulation angle of 2° of the critical angle . The control of the spin-wave resonance by natural light can be understood as a change in the effective surface magnetic anisotropy induced by photoelectron doping (Figure g).…”

Section: Development Of Optical Controllable Magnetism Devicesmentioning

confidence: 99%

See 2 more Smart Citations

Perspectives: Light Control of Magnetism and Device Development

Fang,

Wu,

Zhang

et al. 2024

ACS Nano

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Accurately controlling magnetic and spin states presents a significant challenge in spintronics, especially as demands for higher data storage density and increased processing speeds grow. Approaches such as light control are gradually supplanting traditional magnetic field methods. Traditionally, the modulation of magnetism was predominantly achieved through polarized light with the help of ultrafast light technologies. With the growing demand for energy efficiency and multifunctionality in spintronic devices, integrating photovoltaic materials into magnetoelectric systems has introduced more physical effects. This development suggests that sunlight will play an increasingly pivotal role in manipulating spin orientation in the future. This review introduces and concludes the influence of various light types on magnetism, exploring mechanisms such as magneto-optical (MO) effects, light-induced magnetic phase transitions, and spin photovoltaic effects. This review briefly summarizes recent advancements in the light control of magnetism, especially sunlight, and their potential applications, providing an optimistic perspective on future research directions in this area.

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Section: Sunlight Modulation Of Magnetismmentioning

confidence: 99%

Section: Development Of Optical Controllable Magnetism Devicesmentioning

confidence: 99%

Section: Development Of Optical Controllable Magnetism Devicesmentioning

confidence: 99%

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Perspectives: Light Control of Magnetism and Device Development

Fang,

Wu,

Zhang

et al. 2024

ACS Nano

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“…In a recent study, we successfully demonstrated the use of photovoltaic/ferromagnetic heterostructures on rigid substrates to directly manipulate magnetic properties using natural light. This was achieved by exciting and migrating photo-induced electrons into the ferromagnetic layer, resulting in the alteration of spin properties [5,[38][39][40][41][42]. The effectiveness of photo-induced electrons in manipulating spin dynamics at the nanoscale level has been proven.…”

Section: Introductionmentioning

confidence: 99%

Solar-Powered Switch of Antiferromagnetism/Ferromagnetism in Flexible Spintronics

Wang,

Du,

Zhao

et al. 2023

Nanomaterials

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The flexible electronics have application prospects in many fields, including as wearable devices and in structural detection. Spintronics possess the merits of a fast response and high integration density, opening up possibilities for various applications. However, the integration of miniaturization on flexible substrates is impeded inevitably due to the high Joule heat from high current density (1012 A/m2). In this study, a prototype flexible spintronic with device antiferromagnetic/ferromagnetic heterojunctions is proposed. The interlayer coupling strength can be obviously altered by sunlight soaking via direct photo-induced electron doping. With the assistance of a small magnetic field (±125 Oe), the almost 180° flip of magnetization is realized. Furthermore, the magnetoresistance changes (15~29%) of flexible spintronics on fingers receiving light illumination are achieved successfully, exhibiting the wearable application potential. Our findings develop flexible spintronic sensors, expanding the vision for the novel generation of photovoltaic/spintronic devices.

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“…FMR and PEEM techniques will be incorporated into the toolbox and enable the study of spin dynamics or spin current torque devices. [30][31][32][33][34][35] This set of tools enables researchers to directly observe and manipulate the behavior of spins, which are fundamental to the operation of such devices. The knowledge can contribute to the advancement of spintronics and other related fields.…”

mentioning

confidence: 99%