Pseudogap and Local Pairs in High-Tc Superconductors

被引：0

作者：

Solovjov, A. L. ^{[1
,2
]}

Tkachenko, M. A. ^{[1
]}

机构：

[1] BI Verkin Inst Low Temp Phys & Engn NASU, UA-61103 Kharkov, Ukraine

[2] Int Lab High Magnet Fields & Low Temp, PL-53421 Wroclaw, Poland

来源：

METALLOFIZIKA I NOVEISHIE TEKHNOLOGII | 2013年 / 35卷 / 01期

关键词：

high-temperature superconductors; conductivity; spectral gap; spectral weight; HIGH-TEMPERATURE SUPERCONDUCTOR; FLUCTUATION CONDUCTIVITY; FERMI-LIQUID; TRANSITION; BCS; STATE;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The temperature (T) dependence of pseudogap (PG) Delta*(T) is calculated for Bi2201 within the local pair (LP) model [1, 2]. The model is based on analysis of the excess conductivity derived from resistivity experiments in high-temperature superconductors (HTSs) and supposes the local pairs, which are formed in HTSs at T well above T-c, to generate a pseudogap. To confirm the conclusion, Delta*(T) is compared with the temperature dependence of the loss of the spectral weight W(E-F)(T) measured by ARPES for the same Bi2201 sample [3]. A good agreement between Delta*(T) and W(E-F)(T) is found, confirming the local pairs to be one of the most likely cause for the PG formation.

引用

页码：19 / 26

页数：8

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