Superconducting Cavity-Based Sensing of Band Gaps in 2D Materials
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910361512312832 |
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| author | Maji, Krishnendu Sarkar, Joydip Mandal, Supriya H., Sriram Hingankar, Mahesh Mukherjee, Ayshi Samal, Soumyajit Bhattacharjee, Anirban Patankar, Meghan P. Watanabe, Kenji Taniguchi, Takashi Deshmukh, Mandar M. |
| author_facet | Maji, Krishnendu Sarkar, Joydip Mandal, Supriya H., Sriram Hingankar, Mahesh Mukherjee, Ayshi Samal, Soumyajit Bhattacharjee, Anirban Patankar, Meghan P. Watanabe, Kenji Taniguchi, Takashi Deshmukh, Mandar M. |
| contents | 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 is 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_05867 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Superconducting Cavity-Based Sensing of Band Gaps in 2D Materials Maji, Krishnendu Sarkar, Joydip Mandal, Supriya H., Sriram Hingankar, Mahesh Mukherjee, Ayshi Samal, Soumyajit Bhattacharjee, Anirban Patankar, Meghan P. Watanabe, Kenji Taniguchi, Takashi Deshmukh, Mandar M. Mesoscale and Nanoscale Physics Superconductivity 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 is 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. |
| title | Superconducting Cavity-Based Sensing of Band Gaps in 2D Materials |
| topic | Mesoscale and Nanoscale Physics Superconductivity |
| url | https://arxiv.org/abs/2403.05867 |