Critical current in high-Tc superconductors in external electric field

B. Ya Shapiro, Igor B. Khalfin, L. Burlachkov

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

An electric field directed perpendicular to the surface of a superconductor changes the superconducting properties near the surface and creates an additional barrier for flux penetration into the sample. This effect is characterized by the value lD/ξ, where lD is the Debye screening length and ξ is the coherence length, and can be neglected in conventional superconductors with lD≪ξ. However, in high-temperature superconductors, where lD/ξ∼1, the effect is very pronounced and could be used for improvement of the transport critical current.

Original languageEnglish
Pages (from-to)1893-1894
Number of pages2
JournalPhysica B: Condensed Matter
Volume194-196
Issue numberPART 2
DOIs
StatePublished - 2 Feb 1994

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