کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1860361 | 1037427 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Momentum dependence of quasiparticle spectrum and Bogoliubov angle in cuprate superconductors
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Momentum dependence of quasiparticle spectrum and Bogoliubov angle in cuprate superconductors Momentum dependence of quasiparticle spectrum and Bogoliubov angle in cuprate superconductors](/preview/png/1860361.png)
چکیده انگلیسی
The momentum dependence of the low energy quasiparticle spectrum and the related Bogoliubov angle in cuprate superconductors are studied within the kinetic energy driven superconducting mechanism. By calculation of the ratio of the low energy quasiparticle spectra at positive and negative energies, it is shown that the Bogoliubov angle increases monotonically across the Fermi crossing point. The results also show that the superconducting coherence of the low energy quasiparticle peak is well described by a simple d-wave Bardeen-Cooper-Schrieffer formalism, although the pairing mechanism is driven by the kinetic energy by exchanging spin excitations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 374, Issue 4, 11 January 2010, Pages 632-636
Journal: Physics Letters A - Volume 374, Issue 4, 11 January 2010, Pages 632-636
نویسندگان
Weifang Wang, Zhi Wang, Jingge Zhang, Shiping Feng,