Characterization of YBa2Cu3O7−δ coplanar resonator for microwave kinetic inductance detectors

Autor:	Ariel Roitman, A Shaulov, Y Yeshurun
Rok vydání:	2022
Předmět:	Materials Chemistry Metals and Alloys Ceramics and Composites Electrical and Electronic Engineering Condensed Matter Physics
Zdroj:	Superconductor Science and Technology. 36:015002
ISSN:	1361-6668 0953-2048
DOI:	10.1088/1361-6668/ac9eea
Popis:	We demonstrate an improved YBa2Cu3O7−δ -based microwave kinetic inductance detector with a quality factor Q i ∼ 2.5 × 10 4 and noise equivalent power, ∼ 10 − 12 W Hz − 1 at 10 K. Zero field cooled (ZFC) and field cooled (FC) measurements of the magnetic field dependence of the resonance characteristics, show substantially different behavior, indicating that both the screening currents and vortices play a role. The ZFC measurements exhibit a sharp decrease of the resonance frequency, f r , and Q i at low fields, up to the full penetration field, revealing the dominant role of the screening currents. In contrast, the FC measurements exhibit a moderate decrease of f r and Q i with field, revealing the role of vortices and reflecting the field dependence of the penetration depth in a d-wave superconductor.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::722f9541761ff8633795af2d367c7bc2 https://doi.org/10.1088/1361-6668/ac9eea Zobrazit plný text záznamu