Multigap superconductivity in doped p-type cupratesстатья
Статья опубликована в журнале из списка RSCI Web of Science
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из перечня ВАК
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 17 декабря 2014 г.
Аннотация:Andreev and tunneling spectroscopy studies of Bi2Sr2Ca Cun - 1 (n) O2n + 4 + delta, HgBa2Ca Cun - 1 (n) O2n + 2 + delta and Tl2Ba2Ca Cu-n - 1(2n + 4 + delta) have shown that superconductivity in single-layer (n = 1) and two-layer (n = 2) phases has a single-gap character. Qualitatively different results were obtained for three-layer phases. In doped p-type Hg-1223, Bi-2223, and Tl-2223 samples two (or three) superconducting gaps were observed. The existence of multigap superconductivity in superconducting cuprates with n a parts per thousand yen 3 is explained by a difference in doping levels of outer (OP) and internal (IP) CuO2 planes.