We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Evidence for two dimensional anisotropic Luttinger liquids at millikelvin temperatures.
- Authors
Yu, Guo; Wang, Pengjie; Uzan-Narovlansky, Ayelet J.; Jia, Yanyu; Onyszczak, Michael; Singha, Ratnadwip; Gui, Xin; Song, Tiancheng; Tang, Yue; Watanabe, Kenji; Taniguchi, Takashi; Cava, Robert J.; Schoop, Leslie M.; Wu, Sanfeng
- Abstract
Interacting electrons in one dimension (1D) are governed by the Luttinger liquid (LL) theory in which excitations are fractionalized. Can a LL-like state emerge in a 2D system as a stable zero-temperature phase? This question is crucial in the study of non-Fermi liquids. A recent experiment identified twisted bilayer tungsten ditelluride (tWTe2) as a 2D host of LL-like physics at a few kelvins. Here we report evidence for a 2D anisotropic LL state down to 50 mK, spontaneously formed in tWTe2 with a twist angle of ~ 3o. While the system is metallic-like and nearly isotropic above 2 K, a dramatically enhanced electronic anisotropy develops in the millikelvin regime. In the anisotropic phase, we observe characteristics of a 2D LL phase including a power-law across-wire conductance and a zero-bias dip in the along-wire differential resistance. Our results represent a step forward in the search for stable LL physics beyond 1D. Recently, a Luttinger liquid state was reported in a moiré superlattice of bilayer tungsten ditelluride at small twist angles and temperatures of a few kelvins. Here, the authors extend this result to millikelvin temperatures, supporting the existence of the 2D anisotropic Luttinger liquid as a stable ground state.
- Subjects
LUTTINGER liquids; SUPERLATTICES; TEMPERATURE; TUNGSTEN; PHYSICS
- Publication
Nature Communications, 2023, Vol 14, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-023-42821-2