Theory of Cooper-pair mass spectroscopy by the current-induced contact-potential difference

Todor M. Mishonov

doi:10.1103/PhysRevB.50.4009

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Theory of Cooper-pair mass spectroscopy by the current-induced contact-potential difference

Todor M. Mishonov

DOI 10.1103/PhysRevB.50.4009 · Physical Review B

T1

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Abstract

The creation of contactless Cooper-pair mass spectroscopy based on the Bernoulli-Venturi effect in thin superconducting films is suggested. The preparation of layered metal-insulator-superconductor-type heterostructures and standard electronics are necessary for the realization of the method. Two electrodes are patterned from the metallic layer: a circle and concentric-ring electrode. The currents in the superconducting film are induced by a drive coil concentric to the electrodes. The Bernoulli potential of the charged Cooper-pair superfluid creates a measurable electric polarization of gate electrodes of this plane-capacitor device. The current-induced contact-potential difference is limited by the Ginzburg-Landau potential -aGL(T)= 1/2ħe*Hc2(T)/m*c=ħ2/2m*ξ2(T). The additional charge of the polarized circular electrode has the same sign as the free charge carriers of the superconductor.

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