USING A SCANNING SQUID TO DETERMINE THE SYMMETRY OF THE ORDER-PARAMETER IN YBCO

Authors
MATHAI A GIM Y BLACK RC AMAR A WELLSTOOD FC
Citation
A. Mathai et al., USING A SCANNING SQUID TO DETERMINE THE SYMMETRY OF THE ORDER-PARAMETER IN YBCO, IEEE transactions on applied superconductivity, 5(2), 1995, pp. 3233-3237
Citations number
24
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on applied superconductivity → ACNP
ISSN journal
10518223
Volume
5
Issue
2
Year of publication
1995
Part
3
Pages
3233 - 3237
Database
ISI
SICI code
1051-8223(1995)5:2<3233:UASSTD>2.0.ZU;2-E
Abstract
We have determined the time and spatial symmetry of the superconductin g order parameter in YBa2Cu3O7 (YBCO) by using a Scanning SQUID Micros cope to perform a time-reversal invariance test, We find the order par ameter in YBCO has a time-reversal invariant d(x)2(-y)2 Symmetric comp onent, In addition, we find that the amplitude of any imaginary isotro pic s-wave symmetric component must be less than 6% and any real isotr opic s-wave component less than89%.