Cuprate interband superconducting density for doping driven spectral overlaps

被引：10

作者：

Kristoffel, N

Rubin, P

机构：

[1] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia

[2] Univ Tartu, Inst Theoret Phys, EE-51010 Tartu, Estonia

来源：

JOURNAL OF SUPERCONDUCTIVITY | 2005年 / 18卷 / 5-6期

关键词：

cuprate; interband model; superconducting density; pseudogap;

D O I：

10.1007/s10948-005-0063-5

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We calculate the superconducting density for a model cuprate with gapped itinerant and defect subsystems brought into spectral overlap by progressive doping. The interband nature of the pairing prevents the manifestation of the normal state gaps in the superconducting density. These "extrinsic" gaps drive the pseudogap behavior until the overlap concentrations are reached. Further doping changes the nature of the quasiparticle minimal excitation energy and a pseudogap is transformed into the corresponding superconducting gap. The Uemura-type plot contains a sublinear segment at underdoping.

引用

页码：705 / 708

页数：4

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