Observation of electron orbitals and electromagnetic wave response in single relativistic-particle devices

2015 Fiscal Year Final Research Report

• Project/Area Number: 25706030
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: General applied physics
• Research Institution: National Institute for Materials Science
• Principal Investigator: Moriyama Satoshi 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, 独立研究者 (00415324)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: グラフェン / hBN / 量子ホール効果 / 単電子輸送 / ナノ微細加工

Outline of Final Research Achievements

We demonstrated the quantum confinement of a single relativistic-particle in graphene nanostructures under a uniform magnetic field, and analyzed the carrier trajectories in the graphene nanodevices. In addition, we attempted to develope the high quality graphene samples to use the quantum properties in graphene. We fabricated the device structure that an encapsulated hexagonal boron nitride (hBN)/graphene/hBN heterostructures with one-dimensional edge contacts. The results of quantum transport measurement exhibited that the high carrier-mobility with quasi-ballistic transport regime in our device and the good alignment of graphene and hBN crystal orientation are realized.

Free Research Field

工学