d_{x^2-y^2} Symmetry and the Pairing Mechanism

Дата и время публикации : 1996-09-15T00:58:23Z

Авторы публикации и институты :
N. Bulut (UCSB)
D. J. Scalapino (UCSB)

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 9 pages and 2 eps figs, uses revtex with epsf, in press, PRB
Первичная категория: cond-mat

Все категории : cond-mat

Краткий обзор статьи: An important question is if the gap in the high temperature cuprates has d_{x^2-y^2} symmetry, what does that tell us about the underlying interaction responsible for pairing. Here we explore this by determining how three different types of electron-phonon interactions affect the d_{x^2-y^2} pairing found within an RPA treatment of the 2D Hubbard model. These results imply that interactions which become more positive as the momentum transfer increases favor d_{x^2-y^2} pairing in a nearly half-filled band.

Category: Physics