Controlling quantum phases of electrons and excitons in moiré superlattices

Zhang, Lifu; Ni, Ruihao; Zhou, You

doi:10.1063/5.0139179

Controlling quantum phases of electrons and excitons in moiré superlattices

Journal Article · Tue Feb 21 23:00:00 EST 2023 · Journal of Applied Physics

DOI:https://doi.org/10.1063/5.0139179· OSTI ID:1957950

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Univ. of Maryland, College Park, MD (United States); University of Maryland College Park
Univ. of Maryland, College Park, MD (United States)
Univ. of Maryland, College Park, MD (United States); Maryland Quantum Materials Center, College Park, MD (United States)

Moiré lattices formed in twisted and lattice-mismatched van der Waals heterostructures have emerged as a platform to engineer the novel electronic and excitonic states at the nanoscale. This Perspective reviews the materials science of moiré heterostructures with a focus on the structural properties of the interface and its structural–property relationships. We first review the studies of the atomic relaxation and domain structures in moiré superlattices and how these structural studies provide critical insights into understanding the behaviors of quantum-confined electrons and excitons. We discuss the general frameworks to manipulate moiré structures and how such control can be harnessed for engineering new phases of matter and simulating various quantum phenomena. Lastly, we discuss routes toward large-scale moiré heterostructures and give an outlook on their applications in quantum electronics and optoelectronics. Special emphasis will be placed on the challenges and opportunities of the reliable fabrication and dynamical manipulation of moiré heterostructures.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Maryland, College Park, MD (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division

Grant/Contract Number:: SC0022885

OSTI ID:: 1957950

Alternate ID(s):: OSTI ID: 1958241

Journal Information:: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 133; ISSN 0021-8979

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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