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，魯汶大學(xué)教授，近年來主要從事納米尺度掃描探針技術(shù)的研究工作，發(fā)展了超低溫高磁場掃描柵極探針技術(shù)和掃描近場光學(xué)顯微技術(shù)，對低維量子材料的納米局域電子輸運、光電轉(zhuǎn)換、量子霍爾效應(yīng)等進行研究。發(fā)表了包括一篇Nat. Phys., 兩篇Nat. Commun., 三篇PRL在內(nèi)70余篇研究論文。
報告內(nèi)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.
