Is the pi-particle responsible for the 41 meV peak in YBa_2Cu_3O_7?

Дата и время публикации : 1997-05-06T20:32:10Z

Авторы публикации и институты :
Martin Greiter (Stanford University)

Ссылка на журнал-издание: Phys. Rev. Lett. 79, 4898 (1997)
Коментарии к cтатье: 3 pages, latex (revtex)
Первичная категория: cond-mat.supr-con

Все категории : cond-mat.supr-con

Краткий обзор статьи: It is argued that there is no low-energy resonance associated with the pi-operators introduced by Demler and Zhang. This implies that the Hubbard model does not possess an approximate SO(5) symmetry generated by these operators. Recent finite-size studies are re-interpreted accordingly.

Category: Physics