Spin-only approach to quantum magnetism in the ordered stripe state

Дата и время публикации : 1998-08-04T13:30:47Z

Авторы публикации и институты :
J. Tworzydlo
C. N. A. van Duin
J. Zaanen

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 3 pages Revtex, 2 figures, submitted to Journal of Superconductivity (Proc. of 2nd Intern. Conf. on Stripes and High Tc Superconductivity, Rome ’98)
Первичная категория: cond-mat.str-el

Все категории : cond-mat.str-el

Краткий обзор статьи: It has been argued that the spin-dynamics in cuprate superconductors is governed by the proximity to a zero-temperature critical point. This critical point would be related to a transition from the superconducting phase to an ordered stripe state. Using a coupled spin-ladder model, we investigate to what extent the strong quantum spin-fluctuations in the ordered stripe state can be attributed to the spin sector. For the bond-centered stripes, we find that our spin-only model can account for the observed spin-fluctuations. For site-ordered stripes, coupling of the spin and charge sector is needed.

Category: Physics