Optically-induced changes in magnetic properties of Fe2B/BiFeO3 heterostructure

Aftabi, Ali; Tehranchi, M.M.

doi:10.1016/j.jallcom.2018.06.341

Cited by 10 publications

(2 citation statements)

References 51 publications

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“…Their data revealed that changes in the electron and spin temperatures of the AFM layer under pulsed-laser irradiation was responsible for this intriguing phenomenon. Light modulation of the EB effect in some BiFeO 3 heterostructures has also been realized, such as in Fe 2 B/BiFeO 3 , BiFeO 3 /La 2/3 Sr 1/3 MnO 3 /STO, and Co 90 Fe 10 BiFeO 3 …”

Section: Introductionmentioning

confidence: 96%

Photocontrol of Exchange Bias Using Cobalt–Iron Prussian Blue Analogues for Applications in Spintronics

Yao

Cao

et al. 2023

ACS Appl. Nano Mater.

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Multiphysics manipulation of the exchange bias (EB) effect to achieve spin-valve-type spintronic device versatility has begun to attract increasing attention recently. Light-controlled EB is considered to be an attractive approach because the photon mode allows access to a wide variety of materials with high speed, remote control, noncontact, and superior resolution. In this work, we report a detailed photocontrolled EB effect in the well-defined CoO@CoFePBA core–shell heteronanostructure, where the EB effect of this composite can be permanently changed after being exposed to light. As demonstrated, such an interesting photocontrolled effect is actually affected by the composition of the CoFePBA shell. More deeply, the alkali-metal-ion content in the CoFePBA shell is the major factor in controlling these hybrids’ EB effects. Different alkali-metal insertions result in different ratios of the FeIII–CoII magnetic pair to the FeII–CoIII diamagnetic pair in the CoFePBA shell, where FeIII–CoII and FeII–CoIII control the magnetic and photomagnetic effects of CoFePBA, respectively. Therefore, the photocontrolled EB effect of the whole nanohybrid can be adjusted by the amount of alkali-metal insertion in the CoFePBA shell. This study is an advance in the research of light-controlled EB effects, which are useful for the evolution of new functional spintronic devices, such as photomagnetic switches, photomagnetic sensors, and photointelligent information storage materials.

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Section: Introductionmentioning

confidence: 96%

Photocontrol of Exchange Bias Using Cobalt–Iron Prussian Blue Analogues for Applications in Spintronics

Yao

Cao

et al. 2023

ACS Appl. Nano Mater.

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“…Due to their high cost‐effective, since then Fe‐B alloys have been getting more and more interest, and they have been successfully applied to mud pump blade, glass molds [18], roll [19], guide rolls [20], grinding ball [21], hammer head [22] and hot‐dip [23, 24], etc. Recently, Fe 2 B as a functional material has been also shown great application potential in catalysis [25, 26], microwave absorbers [27], magnetic fluid therapy [28], optical controllable magnetic devices [29], strong ferromagnetic material with high hardness [30], etc. As well know, these applications of Fe 2 B are closely related to its fundamental properties such as crystal structure, stability, mechanical, electronic and magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

First‐principles study on stability, Debye temperature, mechanical, electronic and magnetic properties of Fe₂B compounds

Wei

Chen

Mao

et al. 2023

Int J of Quantum Chemistry

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In this work, the stability, Debye temperature, mechanical, electronic and magnetic properties of four kinds of Fe2B with the different crystal structures were investigated by first‐principles calculation, and the results of Fe2B with or without spin polarization were comparatively analyzed. It was found that spin polarization increases the thermodynamic stability and Debye temperature of T1 (ICSD NO: 30446) and T2 (42530), but reduces that of T3 (16809) and T4 (160789). Only T1 and T2 are thermodynamically stable compounds, but all of the Fe2B are mechanically stable. Ferromagnetic T1 and T2 have the largest Young's modulus, shear modulus, Vickers hardness and fracture toughness. Moreover, their Vickers hardness is much larger than that of the others. Electronic structures revealed that the larger modulus (B, E and G) of T1 and T2 originate from their stronger Fe‐Fe bonds and/or weaker elastic anisotropy. The Ms of unit cell of T3 and T4 are larger than that of T1 and T2. Thus, ferromagnetic T1 and T2 can be considered as the excellent candidates for high‐performance wear‐resistance materials and strong ferromagnetic materials with high hardness, whereas the T3 and T4 are just suitable for the application of strong ferromagnetic materials without wear.

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Photostrictive Effect: Characterization Techniques, Materials, and Applications

Chen

2021

Adv Funct Materials

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Photostrictive effect exhibits a fascinating ability to directly convert light into mechanical strain, which enables a facile and straightforward approach to realize the wireless and remote control of the micro-electromechanical systems (MEMS). It provides a great potential to upgrade the existing electric-driven mechanical devices to optomechanical devices by replacing or integrating electrostriction, piezoelectric effect, or magnetostriction. Although this effect can be dated back to the 1960s, it should not be overlooked as a unique photophysical phenomenon. Especially in the passing decade, it has regained widespread attention, triggered by the emerging characterization techniques and new material systems, as well as the booming progress of MEMS. The recent progress of this fast-growing field is summarized by emphasizing the up-to-date characterization techniques and several new material systems. Furthermore, the potential applications of the photostrictive effect are also comprehensively reviewed. It is hoped that this article will promote the development of photostrictive effect, to not only deepen the research on the underlying mechanisms, but also accelerate the exploration of highperformance photostrictive materials, so as to meet the upcoming challenges faced by light as a major energy source in the foreseeable future.

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Optically-induced changes in magnetic properties of Fe2B/BiFeO3 heterostructure

Cited by 10 publications

References 51 publications

Photocontrol of Exchange Bias Using Cobalt–Iron Prussian Blue Analogues for Applications in Spintronics

Photocontrol of Exchange Bias Using Cobalt–Iron Prussian Blue Analogues for Applications in Spintronics

First‐principles study on stability, Debye temperature, mechanical, electronic and magnetic properties of Fe₂B compounds

Photostrictive Effect: Characterization Techniques, Materials, and Applications

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Optically-induced changes in magnetic properties of Fe2B/BiFeO3 heterostructure

Cited by 10 publications

References 51 publications

Photocontrol of Exchange Bias Using Cobalt–Iron Prussian Blue Analogues for Applications in Spintronics

Photocontrol of Exchange Bias Using Cobalt–Iron Prussian Blue Analogues for Applications in Spintronics

First‐principles study on stability, Debye temperature, mechanical, electronic and magnetic properties of Fe2B compounds

Photostrictive Effect: Characterization Techniques, Materials, and Applications

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Product

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First‐principles study on stability, Debye temperature, mechanical, electronic and magnetic properties of Fe₂B compounds