کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1814148 | 1525256 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of flux line lattices by SANS with unpolarized and polarized neutrons
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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
We have investigated flux lines in low- and high-TcTc superconductors using unpolarized and polarized neutron techniques. In high-TcTc materials, we observe transitions from triangular to square flux line lattices (FLLs) which probably represent the effects of d-wave pairing. In niobium, a supposedly ‘conventional’ superconductor, even more FLL phase transitions can be observed, into structures which spontaneously break the crystal symmetry. Observations of polarized neutron scattering intensities from niobium with a high density of pinning centers show the effects of pinning on the spin-dependence of the signal. Other possible applications of polarized neutrons scattering from the FLL are mentioned.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 397, Issues 1–2, 15 July 2007, Pages 71–75
Journal: Physica B: Condensed Matter - Volume 397, Issues 1–2, 15 July 2007, Pages 71–75
نویسندگان
Ted Forgan, Richard J. Lycett, Charlotte Bowell, Demetris Charalambous, Bela Farago, Mark Laver, Bob Cubitt, Charles Dewhurst,