Skip to main content

Observation of a nematic quantum Hall liquid on the surface of bismuth

Author(s): Feldman, Benjamin E.; Randeria, Mallika T.; Gyenis, Andras; Wu, Fengcheng; Ji, Huiwen; et al

To refer to this page use:
Abstract: Nematic quantum fluids with wave functions that break the underlying crystalline symmetry can form in interacting electronic systems. We examined the quantum Hall states that arise in high magnetic fields from anisotropic hole pockets on the Bi(111) surface. Spectroscopy performed with a scanning tunneling microscope showed that a combination of single-particle effects and many-body Coulomb interactions lift the six-fold Landau level (LL) degeneracy to form three valley-polarized quantum Hall states. We imaged the resulting anisotropic LL wave functions and found that they have a different orientation for each broken-symmetry state. The wave functions correspond to those expected from pairs of hole valleys and provide a direct spatial signature of a nematic electronic phase.
Publication Date: 21-Oct-2016
Citation: Feldman, Benjamin E, Randeria, Mallika T, Gyenis, Andras, Wu, Fengcheng, Ji, Huiwen, Cava, RJ, MacDonald, Allan H, Yazdani, Ali. (2016). Observation of a nematic quantum Hall liquid on the surface of bismuth. SCIENCE, 354 (316 - 321). doi:10.1126/science.aag1715
DOI: doi:10.1126/science.aag1715
ISSN: 0036-8075
EISSN: 1095-9203
Pages: 316 - 321
Type of Material: Journal Article
Journal/Proceeding Title: SCIENCE
Version: Author's manuscript

Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.