Quantum Phase Transitions of Trilayer Excitons in Atomically Thin Heterostructures

Yevgeny Slobodkin, Yotam Mazuz-Harpaz, Sivan Refaely-Abramson, Snir Gazit, Hadar Steinberg, Ronen Rapaport

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

We determine the phase diagram of excitons in a symmetric transition-metal dichalcogenide 3-layer heterostructure. First principles calculations reveal interlayer exciton states of a symmetric quadrupole, from which higher energy asymmetric dipole states are composed. We find quantum phase transitions between a repulsive quadrupolar and an attractive staggered dipolar lattice phases, driven by a competition between interactions and single exciton energies. The different internal quantum state of excitons in each phase is a striking example of a system where single-particle and interacting many-body states are coupled.

Original languageAmerican English
Article number255301
JournalPhysical Review Letters
Volume125
Issue number25
DOIs
StatePublished - 18 Dec 2020

Bibliographical note

Funding Information:
S. R. A. acknowledges support from the Israel Science Foundation, Grant No. 1208/19. S. G. acknowledges support from the Israel Science Foundation, Grant No. 1686/18. R. R. acknowledges support from the Israel Science Foundation, Grant No. 836/17, and the Bi-national Science Foundation, Grant No. 2016112. H. S. acknowledges support from Israeli Science Foundation Grant No. 861/19. This research used resources of the National Energy Research Scientific Computing Center (NERSC).

Publisher Copyright:
© 2020 American Physical Society.

Fingerprint

Dive into the research topics of 'Quantum Phase Transitions of Trilayer Excitons in Atomically Thin Heterostructures'. Together they form a unique fingerprint.

Cite this