Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide The advent of two-dimensional van der Waals materials is a frontier of condensed matter physics and quantum devices. However, characterizing such materials remains challenging due to the limitations of bulk material techniques, necessitating the development of specialized methods. Here, we investigate the superconducting properties of Bi 2 Sr 2 CaCu 2 O 8+ x flakes by integrating them with a hybrid superconducting microwave resonator. The hybrid resonator is significantly modified by the interaction with the flake while maintaining a high quality factor (3 × 10 4 ). We also observe a significant upshift of the resonator frequency with increasing temperature, as well as a positive nonlinearity. These effects originate from a presently unknown microscopic mechanism within the flake, and can be modeled as a two-level system bath interacting with the resonant mode. Our findings open a path for high quality hybrid circuits with van der Waals flakes for exploring novel materials and developing new devices for quantum technology.
Source: Nano Letters
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
Awards: G1042991211, G2034111186, Fortschritte bei den Methoden zur Realisierung thermoelektrischer Schaltungen in verdrillten VanderWaalsHochtemperaturKupferheterostrukturen, AxionElektrodynamik von SupraleiterTopologischeIsolatorHeterostrukturen, G387099297, G4556751752, G5473878947, G5505237647, G5596376502, Nachweis der topologischen Supraleitung bei hohen Temperaturen in einer verdrehten CupratHeterostruktur nahe 45°, Kontrolle starker Korrelationen von HochtemperaturSupraleitern mit VanderWaalsHeterostrukturen
OpenAlex ID: W4406865818