We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Gate-tunable plasmons in mixed-dimensional van der Waals heterostructures.
- Authors
Wang, Sheng; Yoo, SeokJae; Zhao, Sihan; Zhao, Wenyu; Kahn, Salman; Cui, Dingzhou; Wu, Fanqi; Jiang, Lili; Utama, M. Iqbal Bakti; Li, Hongyuan; Li, Shaowei; Zibrov, Alexander; Regan, Emma; Wang, Danqing; Zhang, Zuocheng; Watanabe, Kenji; Taniguchi, Takashi; Zhou, Chongwu; Wang, Feng
- Abstract
Surface plasmons, collective electromagnetic excitations coupled to conduction electron oscillations, enable the manipulation of light–matter interactions at the nanoscale. Plasmon dispersion of metallic structures depends sensitively on their dimensionality and has been intensively studied for fundamental physics as well as applied technologies. Here, we report possible evidence for gate-tunable hybrid plasmons from the dimensionally mixed coupling between one-dimensional (1D) carbon nanotubes and two-dimensional (2D) graphene. In contrast to the carrier density-independent 1D Luttinger liquid plasmons in bare metallic carbon nanotubes, plasmon wavelengths in the 1D-2D heterostructure are modulated by 75% via electrostatic gating while retaining the high figures of merit of 1D plasmons. We propose a theoretical model to describe the electromagnetic interaction between plasmons in nanotubes and graphene, suggesting plasmon hybridization as a possible origin for the observed large plasmon modulation. The mixed-dimensional plasmonic heterostructures may enable diverse designs of tunable plasmonic nanodevices. Surface plasmons have unique physical properties that make them also interesting for technology. Here, the authors observe plasmons in mixed-dimensional heterostructures that can be highly modulated with electrostatic gating, which may be explained by plasmon hybridization
- Subjects
LUTTINGER liquids; HETEROSTRUCTURES; SURFACE plasmons; CONDUCTION electrons; ELECTROMAGNETIC interactions; CARBON nanotubes; NANOTUBES
- Publication
Nature Communications, 2021, Vol 12, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-021-25269-0