Andreev reflection in layered structures: implications for high T_c grain boundary Josephson junctions

Дата и время публикации : 2000-10-06T16:06:00Z

Авторы публикации и институты :
A. A. Golubov (University of Twente, The Netherlands)
F. Tafuri (Seconda Universita di Napoli and INFM-Dipartimento Scienze Fisiche dell’Universita di Napoli “Federico II”, Italy)

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 4 pages, 4 figures, to be published in Phys. Rev. B
Первичная категория: cond-mat.supr-con

Все категории : cond-mat.supr-con, cond-mat.mes-hall

Краткий обзор статьи: Andreev reflection is investigated in layered anisotropic normal metal / superconductor (N/S) systems in the case of an energy gap Delta in S not negligible with respect to the Fermi energy E_F, as it probably occurs with high critical temperature superconductors (HTS). We find that in these limits retro-reflectivity, which is a fundamental feature of Andreev reflection, is broken modifying sensitively transport across S/N interfaces. We discuss the consequences for supercurrents in HTS Josephson junctions and for the midgap states in S-N contacts

Category: Physics