Andreev spectroscopy of iron-based superconductors: temperature dependence of the order parameters and scaling of ∆_{L,S} with Tcстатья

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Scopus, Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 19 декабря 2014 г.

Работа с статьей


[1] Andreev spectroscopy of iron-based superconductors: temperature dependence of the order parameters and scaling of ∆_{l,s} with tc / T. E. Kuzmicheva, S. A. Kuzmichev, M. G. Mikheev et al. // Physics Uspekhi. — 2014. — Vol. 57, no. 8. — P. 819–827. The unexpected discovery in 2006 of the first layered Fe-based high-temperature superconductor (HTSC), LnOFePn (where Ln is lanthanide, Pn is pnictide; hereafter referred to as 1111), becomes a key issue in modern solid-state physics. Since 2008, the class of iron-based superconductors has greatly expanded: several families of iron pnictides and chalcogenides have been synthesized. The crystal structure of oxypnictides is reminiscent of that of cuprates and is, in fact, a stack of superconducting Fe-As layers alternating along the c-direction with spacers, nonsuperconducting oxide blocks, Ln-O. In spite of the pronounced layered structure and anisotropic physical properties, the electron subsystem in Fe-based superconductors is less quasi-two-dimensional than that in cuprate HTSC, because the height of the Fe-As blocks exceeds the thickness of the CuO2 planes, whereas the distance between superconducting blocks in iron-based superconductors is significantly shorter than that in cuprates. This seems to be a reason why the critical temperature of Fe-based superconductors, though being as high as Tc ∼ 57.5K, still does not reach the cuprate one. [ DOI ]

Публикация в формате сохранить в файл сохранить в файл сохранить в файл сохранить в файл сохранить в файл сохранить в файл скрыть