Observation of neutral lines during flux creep in thin high-Tc superconductors

Thomas Schuster; Holger Kuhn; Ernst Helmut Brandt

doi:10.1103/PhysRevB.51.697

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Observation of neutral lines during flux creep in thin high-Tc superconductors

Thomas Schuster, Holger Kuhn, Ernst Helmut Brandt

DOI 10.1103/PhysRevB.51.697 · Physical Review B

T1

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Abstract

The "neutral lines" which were recently predicted to occur during flux creep in thin superconductors in a transverse magnetic field, are observed by magneto-optics in YBa2Cu3O7−δ strips and rectangular platelets. These stationary neutral lines or loops separate regions where the flux density increases or decreases during flux creep due to the large demagnetization field. The observations are in good agreement with theory, which is extended to rectangular specimen shape.

Source-reported materials — not catalogue approval

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