Barriers to vortex-line cutting in high-Tc superconductors

Carlo Carraro; Daniel S. Fisher

doi:10.1103/PhysRevB.51.534

← Back to search

Barriers to vortex-line cutting in high-Tc superconductors

Carlo Carraro, Daniel S. Fisher

DOI 10.1103/PhysRevB.51.534 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

Calculations are presented of the energy barriers between topologically different configurations of two entangled vortex lines in a superconductor. The results suggest that the line-cutting barriers in high-Tc superconductors are somewhat larger than previous numerical estimates indicated, but not large enough to support a kinetic ‘‘polymer glass’’ interpretation of the irreversibility line in fields much greater than Hc1. The consequences of a crossing barrier for transport properties are discussed briefly.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown