Publications by authors named "JieFu Xiong"
Article Synopsis
- Dealloying enhances the electrocatalytic performance of FeCoSiB compounds for hydrogen evolution reactions by increasing the surface area through the formation of nanosheets.
- After 3 hours of dealloying, the overpotential for the optimized NS-FeCoSiB is reduced to 175.1 mV at 1.0 M KOH, outperforming the untreated counterpart (215 mV).
- The study also finds that the hydrogen evolution activity improves significantly with increased cobalt doping, peaking at a 10% Co addition, highlighting the importance of surface activity in catalyst development.
Classification and Prediction of Skyrmion Material Based on Machine Learning.
Research (Wash D C)
March 2023
The discovery and study of skyrmion materials play an important role in basic frontier physics research and future information technology. The database of 196 materials, including 64 skyrmions, was established and predicted based on machine learning. A variety of intrinsic features are classified to optimize the model, and more than a dozen methods had been used to estimate the existence of skyrmion in magnetic materials, such as support vector machines, -nearest neighbor, and ensembles of trees.
View Article and Find Full Text PDFIn situ TEM study on diversified martensitic transition behaviour in NiMnIn alloys.
Nanoscale
March 2019
Ni-Mn-In magnetic shape-memory alloys are attractive materials due to their important functional properties relating to the martensitic transition. Understanding the complex martensitic magnetism and the transition process is of crucial importance not only from a fundamental but also from a technological point of view. Here, we demonstrate the dynamic magnetic domains and microstructures during the martensitic transition in the bulk and melt-spun ribbons of Ni50Mn35In15via in situ Lorentz transmission electron microscopy.
View Article and Find Full Text PDFArticle Synopsis
- The study showcases the ability to control magnetization in a specific type of amorphous SmCo film using an electric field, making this effect nonvolatile and effective at room temperature.
- The film, when placed on a specialized substrate, exhibits different magnetization responses along two distinct directions due to its unique anisotropic properties.
- This innovation not only enables stable two-state memory functionality but also paves the way for advancements in information storage and spintronics technology utilizing hard magnetic materials.*
The high coercivity of 26.2 kOe for SmCo5 nanoflakes are obtained by multistep (three steps) surfactant-assisted ball milling. The magnetic properties, phase structure and morphology are studied by VSM, XRD and SEM, respectively.
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