Superconducting coherence and the helicity modulus in vortex line models

Jack Lidmar and Mats Wallin
Phys. Rev. B 59, 8451 – Published 1 April 1999
PDFExport Citation

Abstract

We show how commonly used models for vortex lines in three-dimensional superconductors can be modified to include k=0 excitations. We construct a formula for the k=0 helicity modulus in terms of fluctuations in the projected area of vortex loops. This gives a convenient criterion for the presence of superconducting coherence. We also present Monte Carlo simulations of a continuum vortex line model for the melting of the Abrikosov vortex lattice in pure YBCO.

  • Received 21 December 1998

DOI:https://doi.org/10.1103/PhysRevB.59.8451

©1999 American Physical Society

Authors & Affiliations

Jack Lidmar and Mats Wallin

  • Department of Theoretical Physics, Royal Institute of Technology, SE-100 44 Stockholm, Sweden

References (Subscription Required)

Click to Expand
Issue

Vol. 59, Iss. 13 — 1 April 1999

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×