Measurements of the quantum anomalous Hall effect in a magnetically doped topological insulator to an accuracy of a few parts in 109 at zero magnetic field show that the system could provide a new type of quantum standard of resistance.

中文翻译：

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无磁场的电阻量子标准


在零磁场下，对磁掺杂拓扑绝缘体中的量子反常霍尔效应的测量精度为 109 分之几，表明该系统可以提供一种新型的量子电阻标准。