کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9841890 | 1525805 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Parallel upper critical field of niobium/graphite bilayers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
The influence of the superconducting proximity effect to the upper critical field (HC) in niobium/graphite bilayers was studied and related to the ratio TCâ/TCS: TCâ and TCS are the transition temperature of Nb/KG film and that of Nb film respectively. The thickness of niobium (Nb) film was controlled about 40 nm, and that of graphite (kish graphite: KG) film ranged from 120 nm to 140 nm. For making a specimen, Nb was deposited on a KG film and a quartz glass substrate simultaneously, and magnetic field was applied parallel to the Nb/KG interface. HC of Nb/KG film (HCâ) lowered from that of Nb film (HCS) at all temperatures within this work, and the value of ÎHC defined as HCS-HCâ showed different temperature dependence among samples, depending on whether TCâ/TCS1.00 < or â§Â 1.00. This behavior of HC suggests the additional existence of the interference of electrons in the clean KG film.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity - Volume 420, Issues 3â4, 1 April 2005, Pages 78-82
Journal: Physica C: Superconductivity - Volume 420, Issues 3â4, 1 April 2005, Pages 78-82
نویسندگان
Toshiharu Kubo, Yoshiko F. Ohashi, Takeshi Kinoshita,