Measuring condensate fraction in superconductors

Authors
Chakravarty, S Kee, HY
Citation
S. Chakravarty et Hy. Kee, Measuring condensate fraction in superconductors, PHYS REV B, 61(21), 2000, pp. 14821-14824
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
61
Issue
21
Year of publication
2000
Pages
14821 - 14824
Database
ISI
SICI code
0163-1829(20000601)61:21<14821:MCFIS>2.0.ZU;2-5
Abstract
An analysis of off-diagonal long-range order in superconductors shows that the spin-spin correlation function is significantly influenced by the order if the order parameter is anisotropic on a microscopic scale. Thus, magnet ic neutron scattering can provide a direct measurement of the condensate fr action of a superconductor. It is also argued that recent measurements in h igh-temperature superconductors come very close to achieving this goal.