Quantum interference effects in chemical vapor deposited graphene
Quantum interference effects in chemical vapor deposited graphene
- 주제(키워드) Graphene Weak (anti)localization Universal conductance fluctuations Quantum interference
- 발행기관 한국물리학회
- 발행년도 2016
- 총서유형 Journal
- UCI G704-001115.2016.16.1.002
- KCI ID ART002076534
- 본문언어 영어
초록/요약
We report several quantum interference effects in graphene grown by chemical vapor deposition. A crossover between weak localization and weak antilocalization effects is observed when varying the gate voltage and we discuss the underlying scattering mechanisms. The characteristic length scale for phase coherence is compared with that estimated from universal conductance fluctuations in the microporeformed graphene sample. These extensive temperature- and gate-dependent measurements of the intervalley and intravalley scattering lengths provide important and useful insight for the macroscopic applications of graphene-based quantum devices.
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