Superconducting quantum interference phenomenon in Bi2Sr2CaCu2O8+δ single crystals
M. Sandberg, V. M. Krasnov
DOI 10.1103/PhysRevB.72.212501 · Physical Review B
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Abstract
The operational direct-current superconducting quantum interference device (dc-SQUID) based on intrinsic Josephson junctions in Bi2Sr2CaCu2O8+δ high-Tc superconductor is fabricated and studied. The in-plane loop layout and the developed in situ end-point detection method allowed an accurate control of the number of junctions in the SQUID. A clear periodic modulation of the superconducting current as a function of magnetic flux through the SQUID loop is observed. This is an unambiguous evidence for the quantum interference phenomenon in Bi2Sr2CaCu2O8+δ single crystals.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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