作者
Peter Makk, Clevin Handschin, Endre Tovari, Kenji Watanabe, Takashi Taniguchi, Klaus Richter, Ming-Hao (劉明豪) Liu, Christian Schönenberger
发表日期
2018/7/9
期刊
Physical Review B
卷号
98
页码范围
035413
简介
Here we present measurements on junctions in encapsulated graphene revealing several sets of magnetoconductance oscillations originating from quasiclassical snake states and edge state Aharonov-Bohm interferences. Even though some of these oscillations have already been observed in suspended and encapsulated devices including different geometries, their identification remained challenging as they were observed in separate measurements, and only a limited amount of data was available. Moreover, these effects have similar experimental signatures, therefore for their proper assignment their simultaneous observation and their detailed characterization is needed. The investigation of the charge carrier density, magnetic field, temperature, and bias dependence of the oscillations enabled us to properly identify their origin. Surprisingly we have found that snake states and Aharonov-Bohm interferences …
引用总数
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