J. Phys. I France
Volume 3, Numéro 1, January 1993
Page(s) 83 - 92
DOI: 10.1051/jp1:1993118
J. Phys. I France 3 (1993) 83-92

Magnetism and high ${T_{\rm c}}$ superconductors

Chris Bowen1, D. L. Hunter1, R. Blumenfeld2 and Naeem Jan1

1  Physics Department, St Francis Xavier University, Antigonish, Nova Scotia, Canada B2G 1C0
2  Cavendish Laboratory, Cambridge University, Madingley Road, Cambridge, CB3 0HE, England

(Received 27 July 1992, accepted in final form 1 September 1992)

The magnetic properties of the copper oxide planes in hight Tc superconductors are represented by a planar 2-d antiferromagnet on a square lattice. We model the magnetic effect of the addition of holes through doping by the replacement of antiferromagnetic with ferromagnetic plaquettes thereby facilitating the creation of vortices/antivortices. These magnetic arrangements lead to pair formation of the holes (Cooper pairs) at low temperatures. We explore some of the consequences of these results for high Tc superconductors.

74.20 - 75.10

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