A model for the doped copper oxide compounds

Дата и время публикации : 1997-06-03T12:36:35Z

Авторы публикации и институты :
J. L. Alonso (Zaragoza)
Ph. Boucaud (Orsay)
V. Martin-Mayor (Madrid)
A. J. van der Sijs (Zurich)

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 9 pages, 2 postscript figures. Version accepted for publication in Europhys. Lett
Первичная категория: cond-mat.supr-con

Все категории : cond-mat.supr-con, cond-mat.str-el, hep-lat

Краткий обзор статьи: 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-T_c superconductivity through Bose-Einstein condensation of bound charge pairs. The mechanism that binds these pairs does not require a Fermi sea.

Category: Physics