Abstract
We explore consequences of a rearrangement of the Fermi surface that strong correlations may produce in an anisotropic electron liquid embedded in a crystalline field. Based on a Fermi liquid approach, an explanation is developed for the practically straight segments of the Fermi line that are observed experimentally near the (0, π) and (π, 0) points in layered compounds such as YBa 2Cu 3O 6.9 and Bi 2Sr 2CaCu 2O 8.
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