Synthesis of (Hg,Pb)(Sr,Ba)(2)Ca2Cu3Oz, superconducting films via MOCVD and PLDстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:(0 0 1)-oriented Sr-containing (Hg,Pb)-1223 films have been synthesised for the first time using the two-step procedure. Hg-free precursor films with the thickness up to I gm have been deposited by metalorganic chemical vapor deposition (MOCVD) or pulsed infra-red laser ablation (PLD) and then the films were annealed in a mercury-containing atmosphere in sealed quartz ampoules. No post-annealing in oxygen was used. The phase composition of the PLD-derived films depended crucially on the deposition temperature of the precursor films. MOCVD-derived films contained only very small amounts of non-superconducting phases according to XRD. The T-c = 118 K and j(c) (77 K, 0.01 T) = 2.5 x 10(6)A/cm(2) have been measured for the MOCVD-derived samples. (C) 2002 Elsevier Science B.V. All rights reserved.