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A lattice field theoretical model for high-T_(c) superconductivity Alonso, J.L. Boucaud, Ph. Martín Mayor, Víctor van der Sijs, A.J. 53 Physics Particles and fields. Física-Modelos matemáticos © 1998 Elsevier Science B.V. International Symposium on Lattice Field Theory (Lattice 97) (15th. 1997. Edinburgh, Scotland). Financially supported by DGICICYT AEN 96-1670,74 and by Acción Integrada Hispano-Francesa HF1996-0022. We present a 2+1-dimensional lattice model for the copper oxide superconductors and their parent compounds, in which both the charge and spin degrees of freedom are treated dynamically. The spin-charge coupling parameter is associated to the doping fraction in the cuprates. The model is able to account for the various phases of the cuprates and their properties, not only at low and intermediate doping but also for (highly) over-doped compounds. We acquire a qualitative understanding of highTc superconductivity as a Bose-Einstein condensation of boun d charge pairs. DGICICYT, Spain Acción Integrada Hispano-Francesa Depto. de Física Teórica Fac. de Ciencias Físicas TRUE pub 2023-06-20T20:28:37Z 2023-06-20T20:28:37Z 1998-04 journal article https://hdl.handle.net/20.500.14352/60333 0920-5632 10.1016/S0920-5632(97)00863-3 eng AEN 96-1670,74 HF1996-0022 open access application/pdf Elsevier Science Bv