کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1820804 1525778 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Interplay of single particle and Josephson Cooper pair tunnelings on the electronic spectra of bilayer cuprate superconductors
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Interplay of single particle and Josephson Cooper pair tunnelings on the electronic spectra of bilayer cuprate superconductors
چکیده انگلیسی
We have investigated the interplay of single particle and Josephson Cooper pair tunnelings on the electronic spectra of optimal and overdoped bilayer cuprate (Bi2Sr2CaCu2O8+x) superconductors using tight binding bilayer Hubbard Hamiltonian within BCS d-wave superconducting state. On the basis of the numerical computation of the spectral function at (π, 0) point of the Brillouin zone, a reduction in bilayer splitting energy is pointed out due to the existence of Josephson Cooper pair tunneling in the superconducting state. We have explained our theoretical analysis of the spectral function in the light of recent angle resolved photoemission spectroscopic (ARPES) measurements on optimal doped bilayer cuprates, where a reduction in the bilayer splitting energy is observed in the superconducting state as compared to normal state.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volume 455, Issues 1–2, 1 May 2007, Pages 46-51
نویسندگان
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