Discrete-Lattice Model for Surface Bound States and Tunneling in d-Wave Superconductors

Дата и время публикации : 1998-03-06T20:13:20Z

Авторы публикации и институты :
M. B. Walker
P. Pairor

Ссылка на журнал-издание: Phys. Rev. B59,1421 (1999)
Коментарии к cтатье: 4 pages, 1 figure, revtex
Первичная категория: cond-mat.supr-con

Все категории : cond-mat.supr-con

Краткий обзор статьи: Surface bound states in a discrete-lattice model of a $d_{x^2 – y^2}$ cuprate superconductor are shown to be, in general, coherent superpositions of an incoming excitation and more than one outgoing excitation, and a simple graphical construction based on a surface Brillouin zone is developed to describe their nature. In addition, a momentum-dependent lifetime contribution to the width of these bound states as observed in tunneling experiments is derived and elucidated in physical terms.

Category: Physics