کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5492268 | 1525672 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Superconductivity in quasi-one-dimensional BaNbS3
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
BaNbS3 is a quasi-one-dimensional metal possessing Nb-Nb chains. Superconductivity was observed at the transition temperature Tc = 0.89 K. Specific heat measurements reveal the bulk nature of the superconductivity, and an energy gap Eg = 0.245(3) meV, which agrees well with BCS theory. The upper critical magnetic field was used to estimate the coherence lengths parallel (ξ⥠= 987(17) Ã
) and perpendicular (ξ⥠= 204(12) Ã
) to the Nb-Nb chains. Despite the anisotropy evident through ξâ¥/ξâ¥, the large magnitudes of each reveal that coherence extends over a large enough volume that superconductivity in BaNbS3 can be viewed as isotropic on the scale of tens of Nb-Nb distances.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volume 542, 15 November 2017, Pages 1-5
Journal: Physica C: Superconductivity and its Applications - Volume 542, 15 November 2017, Pages 1-5
نویسندگان
J.J. Neumeier, M.G. Smith,