Optimizing magnetic/dielectric matching in permalloy/carbonized cotton fiber composites by strain-tunable ferromagnetic resonance and defect-induced dielectric polarization

Shen, Xiaochen; Hu, Chenglong; Ren, Wenling; Zhao, Rongzhi; Ji, Lü; Zhang, Xuefeng; Dong, Xinglong

doi:10.1016/j.jmst.2022.01.027

Cited by 9 publications

(1 citation statement)

References 62 publications

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“…Renewable biomass carbon material has attracted much attention in terms of its rich source, low cost and adjustable structure. Biomass carbon materials such as wood, 19,20 bamboo, 21 cotton, [22][23][24] lotus leaf 25 and water chestnut shell 26 have been reported so far. Viscose fiber is a kind of renewable cellulose fiber, with good moisture absorption, softness and smoothness, is widely used in all kinds of textiles, especially through the non-woven technology made of disposable products such as wet towels, face towels, resulting in inevitable waste.…”

Section: Introductionmentioning

confidence: 99%

Nonwoven carbonized viscose mat for outstanding electromagnetic shielding, fast electrical heating and fire alarm

Hong

Shi

Sun

et al. 2022

Journal of Industrial Textiles

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Disposable face towel derived amorphous carbon prepared by annealing for broad and exacting applications in electromagnetic shielding, electrical heating, etc. This mat with 3D conductive network formed by nonwoven viscose fiber structure gives an outstanding electromagnetic shielding performance of 30 dB and 8161 dB/(g/cm2) at a thickness of 0.168 mm in the frequency range of 0.3–3.0 GHz. In addition, the as prepared mat presents excellent temperature & strain sensing with exceptional sensitivity (BS = 5.5%), and favorable flexibility (1000 bending cycles without fracture). Moreover, the mat provides well Joule heating performance, and the heating temperature can reach over 60°C in 32 seconds under 0.25 A current. More interestingly, the mat shows excellent fire alarm with a fast response (84 ms) and high operating temperature (>500°C). This method provides a simple and low-cost new method for radiation protection, temperature detection, fire alarm and other fields.

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Section: Introductionmentioning

confidence: 99%

Nonwoven carbonized viscose mat for outstanding electromagnetic shielding, fast electrical heating and fire alarm

Hong

Shi

Sun

et al. 2022

Journal of Industrial Textiles

View full text Add to dashboard Cite

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Excitation and Tuning of Spin Waves in Magnonic Crystals by Magnetic Coupling

Shen,

Bo,

Zhao

et al. 2024

Physica Status Solidi (b)

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Magnonic crystals with artificial micro/nanomagnetic pattern act as low‐loss information carriers in many microwave devices. The excitation and control of spin waves inside is essential and fundamental in magnonic crystal applications. Herein, permalloy micro‐disk patterns are constructed on a continuous permalloy film, and they succeed in exciting spin waves in this bilayer‐structured magnonic crystal. The spin‐wave modes can be effectively tuned by varying the periodic parameter (P) of upper‐layer disk pattern, which is confirmed by the transition from single‐peak to multi‐peak in ferromagnetic resonance (FMR) spectra with P decreased from 4 to 0.5 μm. The split in FMR spectra is reconstructed by micromagnetic simulation, revealing that three spin‐wave modes are respectively excited by the domain walls of below‐layer continuous film, geometrical restriction of permalloy micro‐disk, and magnetic coupling between neighboring permalloy micro‐disks. The tunable spin‐wave behavior in this bilayer‐structured magnonic crystal presents broad application prospect in programmable spintronic devices at micro/nanoscale.

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Fe3C/Fe implanted hierarchical porous carbon as efficient electromagnetic wave absorber

Feng,

Qiang,

Shao

et al. 2024

Diamond and Related Materials

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Optimizing magnetic/dielectric matching in permalloy/carbonized cotton fiber composites by strain-tunable ferromagnetic resonance and defect-induced dielectric polarization

Cited by 9 publications

References 62 publications

Nonwoven carbonized viscose mat for outstanding electromagnetic shielding, fast electrical heating and fire alarm

Nonwoven carbonized viscose mat for outstanding electromagnetic shielding, fast electrical heating and fire alarm

Excitation and Tuning of Spin Waves in Magnonic Crystals by Magnetic Coupling

Fe3C/Fe implanted hierarchical porous carbon as efficient electromagnetic wave absorber

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