Indirect Coulomb effect: A new coupling mechanism between vortex pancakes in neighboring superconducting layers

Ji-Min Duan

doi:10.1103/PhysRevLett.70.3991

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Indirect Coulomb effect: A new coupling mechanism between vortex pancakes in neighboring superconducting layers

Ji-Min Duan

DOI 10.1103/PhysRevLett.70.3991 · Physical Review Letters

T1

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Abstract

In the existing literature, the interactions between the vortex ‘‘pancakes’’ believed to form in, e.g., Bi2Sr2CaCu2O8, have been attributed to a combination of magnetic and Josephson effects. Both these effects lead to an attraction between pancakes in neighboring CuO2 planes. We show that there exists a third mechanism of interaction, namely, the indirect effect of the Coulomb interaction, which leads to a repulsion between such pancakes. The relative strength of this coupling is estimated.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	100	Pressure not reported	unknown