具有给定平面缺陷拓扑的轻掺铝和镨YBa $_2$ Cu PDMATHAAB O $_{7-δ}$单晶中的赝能隙态
Pseudogap state in slightly doped by aluminium and praseodymium YBa$_2$Cu$_3$O$_{7-δ}$ single crystals with a given topology of plane defects
摘要：
本文研究了具有预定孪晶界拓扑结构的轻掺Al和Pr的YBaCuO单晶的基平面电导率。分析样品的过剩电导率在很宽的温度范围内表现出类似于$Δσ\sim(1-T/T^*)\exp(Δ_{ab}^*/T)$的依赖性$T_f<T<T^*$，其中$T^*$可以表示为超导转变的平均场温度。用BCS-BEC交叉理论模型可以很好地描述赝能隙的温度依赖性。
英文摘要：
In present work the conductivity in the basis plane of YBaCuO single crystals slightly doped by Al and Pr with a pre-specified topology of twin boundaries has been investigated. The excess conductivity for the analyzed samples shows dependence like $Δσ\sim(1-T/T^*)\exp(Δ_{ab}^*/T)$ in wide temperature range $T_f<T<T^*$, where $T^*$ can be represents as mean field temperature of superconducting transition. The temperature dependence of pseudogap can be satisfactory described in terms of the BCS-BEC crossover theoretical model.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
