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説明:

The superconducting coplanar waveguide (SCPW) cavity plays an essential role in various areas like superconducting qubits, parametric amplifiers, radiation detectors, and studying magnon-photon and photon-phonon coupling. Despite its wide-ranging applications, the use of SCPW cavities to study various van der Waals 2D materials has been relatively unexplored. The resonant modes of the SCPW cavity exquisitely sense the dielectric environment. In this work, we measure the charge compressibility of bilayer graphene coupled to a half-wavelength SCPW cavity. Our approach provides a means to detect subtle changes in the capacitance of the bilayer graphene heterostructure, which depends on the compressibility of bilayer graphene, manifesting as shifts in the resonant frequency of the cavity. This method holds promise for exploring a wide class of van der Waals 2D materials, including transition metal dichalcogenides (TMDs) and their moiré, where DC transport measurement is challenging.

権利情報:

• In Copyright
  This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © 2024 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.nanolett.3c04990.

キーワード: Superconducting cavity, 2D materials, Bilayer graphene, Microwave, Capacitance

刊行年月日: 2024-04-17

出版者: American Chemical Society (ACS)

掲載誌:

• Nano Letters (ISSN: 15306984) vol. 24 issue. 15 p. 4369-4375

研究助成金:

• Japan Society for the Promotion of Science JP20H00354
• J.C. Bose Fellowship from the Department of Science and Technology of India JCB/2022/000045
• Department of Atomic Energy, Government of India 12-R&D-TFR-5.10-0100
• Ministry of Education, Culture, Sports, Science and Technology JPMXP0112101001
• Mission on Nano Science and Technology SR/NM/NS-45/2016
• Department of Science and Technology, Ministry of Science and Technology, India SPR/2019/001247
• Japan Society for the Promotion of Science 19H05790

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI:

公開URL: https://doi.org/10.1021/acs.nanolett.3c04990

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更新時刻: 2025-07-24 08:30:25 +0900

MDRでの公開時刻: 2025-07-24 08:18:22 +0900