کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5496371 | 1399845 | 2017 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On the coherent quasiparticle weight in high-Tc cuprates
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The anomalous temperature dependence of the coherent quasiparticle weight below the superconducting transition temperature Tc in high-Tc cuprates, as has been extensively revealed by angle-resolved photoemission measurements, has been addressed theoretically. We find that this puzzling phenomenon universally appears along the whole Fermi surface, from the nodal to antinodal regions, in momentum space, and can be well comprehended in a mean-field slave-boson picture. The ordinary deduction that the coherent quasiparticle peak is a superconducting one, just from such temperature dependence of the coherent quasiparticle weight below Tc, is found to be questionable, and it could correspond to a competing order, especially in the antinodal region.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 381, Issue 33, 5 September 2017, Pages 2731-2735
Journal: Physics Letters A - Volume 381, Issue 33, 5 September 2017, Pages 2731-2735
نویسندگان
Yong Zheng, Xiaowei Zhang, Wulei Zhou, Xiaochun Liu, Hua Zhao,