کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1819214 1026052 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Theoretical investigation of the superconducting gaps in the Fe-based superconductors
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Theoretical investigation of the superconducting gaps in the Fe-based superconductors
چکیده انگلیسی
Based on an antiferromagnetic (AFM) spin fluctuation approximation, we study the superconducting gaps in Fe-based compound using two-band model. We find that our results are consistent with the previous work that concludes sign-reversal extended s-wave pairings between different Fermi surface sheets. The different superconducting gap magnitude around different Fermi surface sheets is probably due to the different density of states on them. This calculation can give insight to the recent angle-resolved photoemission (ARPES) experiments on these materials. To detect the phase variation of the superconducting gap over the Fermi surfaces, we propose a new method for measuring the particular wave vector phonon linewidth. In the case of the sign-reversal superconducting pairing, the linewidth shows continuities compared to the case of no phase variation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity - Volume 470, Issue 22, 1 December 2010, Pages 2057-2060
نویسندگان
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