2026-06-26T20:32:11Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/603312023-08-27T23:04:32Zcom_20.500.14352_14col_20.500.14352_15

A model for the doped copper oxide compounds Alonso, J.L. Boucaud, Ph. Martín Mayor, Víctor van der Sijs, A.J. We present a relativistic spin-fermion model for the cuprates, in which both the charge and spin degrees of freedom are treated dynamically. The spin-charge coupling parameter is associated with the doping fraction. 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. In particular, we acquire a qualitative understanding of high-Tc superconductivity through Bose-Einstein condensation of bound charge pairs. The mechanism that binds these pairs does not require a Fermi sea. 2023-06-20T20:28:33Z 2023-06-20T20:28:33Z 2023-06-20T20:28:33Z 1998-06-01 journal article https://hdl.handle.net/20.500.14352/60331 0295-5075 10.1209/epl/i1998-00285-3 eng AEN 96-1670 HF1996-0022 open access European Physical Society