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| 1 | Room temperature ferromagnetism of Ni, (Ni, Li), (Ni, N)-doped ZnO thin films显示文摘Ni-doped ZnO thin films (Ni concentration up to 10 mol%) were generated on Si (100) substrates by a sol-gel technique. The films showed wurtzite structure and no other phase was found. The chemical state of Ni was found to be bivalent by X-ray photoelectron spectroscopy. The results of magnetic measurements at room temperature indicated that the films were ferromagnetic, and magnetic moment decreased with rise of Ni concentration. The magnetization of Ni (10 mol%)-doped ZnO film annealed in nitrogen was lower than that annealed in argon, suggesting that the density of defects had an effect on ferromagnetism. | YE XiaoJuan SONG HaiAn ZHONG Wei QI XiaoSi XU MeiHua JIN ChangQing YANG ZaiXin AU ChakTong DU YouWei | 2010 | 中国科学:技术科学2010，40，2： | 2 |
| 2 | Defect-induced insulator-metal transition and negative permittivity in La_(1-x)Ba_(x)CoO_(3)perovskite structure显示文摘The development of negative permittivity materials in multifunctional applications requests expansion of their operating frequency and improvement of stability of negative permittivity.Low electron density is beneficial to reduce plasma frequency so that negative permittivity is achieved in kHz region.Negative permittivity achieved by percolating composites is restricted in practicality due to its instability nature at high temperatures.To achieve temperature-stable negative permittivity in kHz region,monophase La_(1-x)Ba_(x)CoO_(3)ceramics were prepared,and the transition from dielectric to metal was elaborated in the perspective of electrical conductivity and negative permittivity.The plasma-like negative permittivity is attained in kHz region,which is interpreted by the collective oscillation of low electron density.The temperature-stable negative permittivity is based on the fact that the plasmonic state will not be undermined at high temperatures.In addition,zero-crossing behavior of real permittivity is observed in La_(0.9)Ba_(0.1)CoO_(3)sample,which provides a promising alternative to designing epsilon-near-zero materials.This work makes the La_(1-x)Ba_(x)CoO_(3)system a source material for achieving effective negative permittivity. | Zaixin Wei Zhongyang Wang Ciqun Xu Guohua Fan Xiaoting Song Yao Liu Runhua Fan | 2022 | Journal of Materials Science & Technology2022，，17： | 2 |
| 3 | Kinks and Solitons in Coupled Pendulum Lattices显示文摘Self-localized structures in nonlinear coupled pendulum lattices are investigated by use of the method of multiple-scales under quasi-discreteness approximation.The upper cutoff and noncutoff kinks observed by Denardo et al.recently are theoretically explained qualitatively and a lower cutoff standing soliton is also predicated. | HUANG Guoxiang XU Zaixin | 1992 | Chinese Physics Letters1992，9，12： | 1 |
| 4 | Nuclear Gluon Density in the Constituent Quark Model显示文摘The nuclear gluon distribution is predicted using the constituent quark model.We point out that the nuclear shadowing and andsliadowing depress nuclear gluon field when x<0.08 and enhance it when 0.08 | ZHU Wei XU Zaixin | 1993 | Chinese Physics Letters1993，10，10： | 0 |
| 5 | Evolution of Vector Boson Distribution显示文摘The strong interaction effect on the vector boson distribution is discussed.The three-term expressions of the vector boson distribution inside quark and gluon in leading approximation are given.Our result shows that the strong interaction will effect not only the x-,but also the Q^(2)-dependence for the distributions. | XU Zaixin ZHU Wei | 1993 | Chinese Physics Letters1993，10，6： | 0 |
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