کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1594596 | 1515667 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Atomically-flat, chemically-stable, superconducting epitaxial thin film of iron-based superconductor, cobalt-doped BaFe2As2
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The epitaxial growth of Fe-based superconductors such as Co-doped SrFe2As2 (SrFe2As2:Co) was reported recently, but has still insufficient properties for a device application because they have rough surfaces and are decomposed by reactions with water vapor in an ambient atmosphere. This paper reports that epitaxial films of Co-doped BaFe2As2 grown at 700 ∘C show the onset superconducting transition temperature of ∼20 K. The transition is sharper than those observed on the SrFe2As2:Co films, which would originate from their improved crystallinity. These films also have atomically-flat surfaces with step-and-terrace structures and exhibit chemical stability against exposure to water vapor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 149, Issues 47–48, December 2009, Pages 2121–2124
Journal: Solid State Communications - Volume 149, Issues 47–48, December 2009, Pages 2121–2124
نویسندگان
Takayoshi Katase, Hidenori Hiramatsu, Hiroshi Yanagi, Toshio Kamiya, Masahiro Hirano, Hideo Hosono,