کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1819170 1026050 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of f-level on the density of states of magnetic superconductors
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Effect of f-level on the density of states of magnetic superconductors
چکیده انگلیسی

We address a Hamiltonian model to study the coexistence of antiferromagnetism (AFM) and superconductivity (SC) in presence of hybridization between conduction electron and the localized f-level. The AFM and SC long range orders are formulated for the Cu–O plane with an s-wave type pairing symmetry mediated by some boson exchanges. The interplay of these two long range orders is studied through the calculated c-electron density of states (DOS) as well as the localized f-electron DOS. We attempt here to interpret the complex tunneling spectra based upon our model calculation. This model predicts some of the gaps due to the localized low lying excitations appearing near the Fermi level, and the gap structure is consistent with the gapless superconductivity, showing a complex U-shaped s-wave type symmetry. The model calculation helps to separately calculate the AFM and SC order parameters under the special condition of the presence of the weak c–f hybridization.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volume 468, Issue 14, 15 July 2008, Pages 1085–1091
نویسندگان
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