講座主題：Imaging charge transport in graphene: Klein tunneling, whisperitronics and quantum Hall breakdown in real space

主講人：Benoit Hackens 教授

講座時間：6月16日（周四）下午16:00

騰訊會議ID：221 472 363

專家介紹：
    Benoit Hackens，鲁汶大学教授，近年来主要从事纳米尺度扫描探针技术的研究事情，生长了超低温高磁场扫描栅极探针技术和扫描近场光学显微技术，对低维量子质料的纳米局域电子输运、光电转换、量子霍尔效应等进行研究。发表了包罗一篇Nat. Phys., 两篇Nat. Commun., 三篇PRL在内70余篇研究论文。

報告內容簡介：

    Quantum transport in nanodevices is usually probed thanks to measurements of the electrical resistance or conductance, which lack the spatial resolution necessary to probe local-scale electron behaviour. Here, we will discuss how to get real-space local information on peculiar quantum transport phenomena inside graphene constrictions and graphene devices in general. The results were obtained using low temperature scanning gate microscopy (SGM), which consists in mapping the electrical conductance of a device as an electrically-biased sharp metallic tip scans in its vicinity.