A General and Modular Approach to Solid-State Integration of Zero-Dimensional Quantum Systems
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a-general-and-modular-approach-to-solid-state-integration-of-zero-dimensional-quantum-systems.pdf
Description
Published version
Size
2.5 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Kavand, Marzieh
Phillips, Zoe
Koll, William H
Hamilton, Morgan
Perez-Hoyos, Ethel
Greer, Rianna
Ara, Ferdous
Pharis, Daniel
Maleki, Kian
Xu, Mingyu
Date Issued
September 3, 2025
Journal
Nano Letters
Publisher
American Chemical Society (ACS)
Citation
A General and Modular Approach to Solid-State Integration of Zero-Dimensional Quantum Systems. Marzieh Kavand, Zoe Phillips, William H. Koll, Morgan Hamilton, Ethel Perez-Hoyos, Rianna Greer, Ferdous Ara, Daniel Pharis, Kian Maleki, Mingyu Xu, Takashi Taniguchi, Paul Canfield, Michael E. Flatté, Danna E. Freedman, Jay Gupta, and Ezekiel Johnston-Halperin. Nano Letters 2025 25 (37), 13787-13794.
Version
Final published version
Abstract
Here, we present an all-electrical readout mechanism for quasi-0D quantum states (0D-QS), such as point defects, adatoms, and molecules, that is modular and general, providing an approach that is amenable to scaling and integration with other solid-state quantum technologies. Our approach relies on the creation of high-quality tunnel junctions via the mechanical exfoliation and stacking of multilayer graphene (MLG) and hexagonal boron nitride (hBN) to encapsulate the target system in an MLG/hBN/0D-QS/hBN/MLG heterostructure. This structure allows for all-electronic spectroscopy and readout of candidate systems through a combination of coulomb and spin-blockade. As a proof of principle, we demonstrate electronic tunneling spectroscopy of point defects in hBN and the molecular qubit vanadyl phthalocyanine. Our approach demonstrates a new pathway for the incorporation of molecules and atomic defects into solid-state quantum devices and circuits along with a readout scheme that does not rely on highly constrained optical processes for photonic readout.
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DOI of Published Version
https://doi.org/10.1021/acs.nanolett.5c03125
