石墨烯的电流诱导清洗
Current-induced cleaning of graphene
摘要：
提出了一种简单但可重复性高的方法来抑制低温恒温器内石墨烯的污染。该方法包括通过石墨烯器件施加几mA的电流，石墨烯器件在此通常为几$μ$ m宽。这种超高电流密度被证明可以去除吸附在表面上的污染物。该方法非常适合于未掺杂石墨烯器件的量子电子输运研究，并且通过测量异常量子霍尔效应来证明其实用性。
英文摘要：
A simple yet highly reproducible method to suppress contamination of graphene at low temperature inside the cryostat is presented. The method consists of applying a current of several mA through the graphene device, which is here typically a few $μ$m wide. This ultra-high current density is shown to remove contamination adsorbed on the surface. This method is well suited for quantum electron transport studies of undoped graphene devices, and its utility is demonstrated here by measuring the anomalous quantum Hall effect.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
