Tunable Lifshitz Transitions and Multiband Transport in Tetralayer Graphene
Journal Article
·
· Physical Review Letters
- Univ. of California, Riverside, CA (United States)
- Univ. of California, Riverside, CA (United States); Ohio State Univ., Columbus, OH (United States)
- National Inst. for Material Science, Tsukuba (Japan)
To begin, as the Fermi level and band structure of two-dimensional materials are readily tunable, they constitute an ideal platform for exploring the Lifshitz transition, a change in the topology of a material’s Fermi surface. Using tetralayer graphene that host two intersecting massive Dirac bands, we demonstrate multiple Lifshitz transitions and multiband transport, which manifest as a nonmonotonic dependence of conductivity on the charge density $$n$$ and out-of-plane electric field $$D$$, anomalous quantum Hall sequences and Landau level crossings that evolve with $n, D$ and $$B$$.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0012670; SC0010597
- OSTI ID:
- 1470263
- Alternate ID(s):
- OSTI ID: 1423175
- Journal Information:
- Physical Review Letters, Vol. 120, Issue 9; Related Information: SHINES partners with University of California, Riverside (lead); Arizona State University; Colorado State University; Johns Hopkins University; University of California Irvine; University of California Los Angeles; University of Texas at Austin; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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