D-wave superconductivity in the nearly antiferromagnetic Fermi liquid
- McMaster Univ., Ontario (Canada)
Self consistent calculations, based on the 2 dimensional Hubbard model, indicate that the nearly antiferromagnetic Fermi liquid may be a superconductor with d{sub x{sup 2}{minus}y{sup 2}} symmetry. The recent observation of a large anisotropy of the in plane penetration depth has been widely interpreted as evidence that a significant part of the condensate in YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} resides in the chains. This introduces orthorhombic symmetry. Calculations, which remain within a single tight binding band model but with different nearest neighbour hopping in a- and b-directions, can account for the penetration depth anisotropy and also explain the observed size of the D.C. Josephson current between YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} and Pb in c-axis tunnelling.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 136179
- Report Number(s):
- CONF-950144--
- Journal Information:
- Journal of Superconductivity, Journal Name: Journal of Superconductivity Journal Issue: 4 Vol. 8; ISSN JOUSEH; ISSN 0896-1107
- Country of Publication:
- United States
- Language:
- English
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