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    • 1. 发明申请
    • METHOD FOR GENERATING QUANTIZED ANOMALOUS HALL EFFECT
    • 用于产生定量异常霍尔效应的方法
    • US20140179026A1
    • 2014-06-26
    • US14055846
    • 2013-10-16
    • Institute of Physics, Chinese Academy of SciencesTsinghua University
    • QI-KUN XUEKE HEXU-CUN MAXI CHENLI-LI WANGYA-YU WANGLI LVCUI-ZU CHANGXIAO FENG
    • H01L43/14H01L43/06
    • H01L43/14H01L43/065
    • A method for generating quantum anomalous Hall effect is provided. A topological insulator quantum well film in 3QL to 5QL is formed on an insulating substrate. The topological insulator quantum well film is doped with a first element and a second element to form the magnetically doped topological insulator quantum well film. The doping of the first element and the second element respectively introduce hole type charge carriers and electron type charge carriers in the magnetically doped topological insulator quantum well film, to decrease the carrier density of the magnetically doped topological insulator quantum well film to be smaller than or equal to 1×1013cm−2. One of the first element and the second element magnetically dopes the topological insulator quantum well film. An electric field is applied to the magnetically doped topological insulator quantum well film to decrease the carrier density.
    • 提供了一种产生量子异常霍尔效应的方法。 在绝缘基板上形成3QL至5QL中的拓扑绝缘体量子阱膜。 拓扑绝缘体量子阱膜掺杂有第一元素和第二元素以形成磁掺杂拓扑绝缘子量子阱膜。 第一元件和第二元件的掺杂在磁性掺杂拓扑绝缘子量子阱膜中分别引入孔型电荷载流子和电子型电荷载流子,以将磁性掺杂拓扑绝缘子量子阱膜的载流子密度降低到或小于 等于1×1013cm-2。 第一元素和第二元素之一磁性掺杂拓扑绝缘体量子阱膜。 将电场施加到磁性掺杂拓扑绝缘体量子阱膜以降低载流子密度。