Measurements of plastic flow in superconductors and the electron-dislocation interaction

G. A. Alers, O. Buck, Bernhard R. Tittmann

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

The increase in flow stress which occurs at the transition from the superconducting to the normal state has been measured as a function of work hardening, strain rate, and temperature in specimens of pure lead and indium. The results show that this flowstress increase is strain-rate independent and proportional to 1-(TTc)2 to an accuracy of 5%. The lack of strain-rate dependence is inconsistent with the simple model which relates the flow stress to the viscous drag force required to move a dislocation through an electron gas.

Original languageEnglish (US)
Pages (from-to)290-293
Number of pages4
JournalPhysical Review Letters
Volume23
Issue number6
DOIs
StatePublished - Dec 1 1969

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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