Flux-creep dissipation in Y-Ba-Cu-O superconductors at microwave frequencies

M. Giura; R. Marcon; R. Fastampa; E. Silva

doi:10.1103/PhysRevB.45.7387

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Flux-creep dissipation in Y-Ba-Cu-O superconductors at microwave frequencies

M. Giura, R. Marcon, R. Fastampa, E. Silva

DOI 10.1103/PhysRevB.45.7387 · Physical Review B

T1

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Abstract

Microwave measurements of the absorbed power in granular Y-Ba-Cu-O samples for temperatures in the range 1–50 K are reported. The hysteretic behaviors observed are attributed to the fluxon motion in the flux-creep regime. A calculation of the surface resistance, based on the hypothesis of validity of the Bean model and which qualitatively explains the experimental results, is given. The potential of the surface-resistance measurement technique at microwave frequencies to detect various types of losses (flux creep, flux flow, and Josephson-junction dephasing) is discussed.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown