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您的检索式：作者名="Chengrui Fu"
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| 1 | Tuning Surface Spin Polarization of CoFeB by Boron Diffusion Detected by Spin Resolved Photoemission显示文摘Research of spin polarization of magnetic CoFeB thin films is of practical importance in spintronic applications.Here,using a direct characterization technique of spin-resolved photoemission spectroscopy,we obtain the surface spin polarization of amorphous Co_(40)Fe_(40)B_(20)thin films with different annealing temperatures from 100℃to 500℃prepared by magnetron sputtering.After high annealing temperature,a quasi-semiconductor state is gradually formed at the CoFeB surface due to the boron diffusion.While the global magnetization remains almost constant,the secondary electrons’spin polarization,average valence band spin polarization and the spin polarization at Fermi level from spin-resolved photoemission spectroscopy show a general trend of decreasing with the increasing annealing temperature above 100℃.These distinct surface properties are attributed to the enhanced Fe-B bonding due to the boron segregation upon surface after annealing as confirmed by x-ray photoelectron spectroscopy and scanning transmission electron microscopy with energy dispersive spectroscopy.Our findings provide insight into the surface spin-resolved electronic structure of the CoFeB thin films,which should be important for development of high-performance magnetic random-access memories. | Qi Liu Xianyang Lu Chengrui Fu Jiarui Chen Zhe Zhang Yuting Gong Xinyue Wang Yu Yan Qinwu Gao Hui Li Xuezhong Ruan Yao Li Jun Du Jing Wu Liang He Bo Liu Rong Zhang Yongbing Xu | 2023 | Chinese Physics Letters2023，40，8： | 0 |
| 2 | The shapes of synthesized two‐dimensional materials显示文摘The shapes of as‐grown/as‐etched two‐dimensional(2D)islands are the most recognizable features of the chemical vapor deposition(CVD)process which reveal a lot of information about the chemical environment of growth/etching,the effect of the substrate and the growth/etching kinetics.Here,we summarize experimentally observed shapes of CVD‐grown 2D materials from previous reports,theoretical understanding on the corresponding mechanisms and the simulations of the corresponding growth/etching processes.Each part of the review article is organized by combining the fundamental principles that govern the shapes of crystals during growth/etching and the related experimental observations to facilitate the readers to read and understand the content.The content of the review includes attachment‐limited 2D materials growth,diffusion‐limited 2D materials growth(both with and without influence of the substrate),etching and merging of 2D materials with and without considering the effect of the substrate.We also discuss growth and etching of multilayered 2D islands during CVD—a topic still under development.We wish this review will also guide the audience to understand the kinetics of 2D materials growth and to improve controllable synthesis of various 2D materials. | Xiao Kong Chengrui Fu Vladislav Gladkikh Feng Ding | 2023 | SmartMat2023，4，3： | 0 |
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