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arXiv 0905.2955cond-mat.supr-con
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Ba(Fe(1-x)Cox)2As 2和Ba(Fe(1-x)Nix)2As 2单晶中超导transition temperature的Specific heat跃迁

Specific heat jump at the superconducting transition temperature in Ba(Fe(1-x)Cox)2As2 and Ba(Fe(1-x)Nix)2As2 single crystals

Sergey L. Bud'ko, Ni Ni, Paul C. Canfield

摘要:

本文详细测量了Ba(Fe(1-x)Cox)2As 2和Ba(Fe(1-x)Nix)2As 2单晶在超导转变附近的热容。在超导转变温度(Tc)下的比热跃变Δ Cp/Tc在这些系列中变化约10倍。这项工作中的Δ Cp/T$与Tc的关系数据(以及Ba(Fe0.939Co0.061)2As 2、(Ba0.55K0.45)Fe 2As 2和(Ba0.6K0.4)Fe 2As 2的文献数据)可以很好地标度到一个双对数图,Δ Cp/Tc在两个数量级以上,Tc在大约一个数量级以上,得到Δ Cp/Tc ~ Tc ^[2]。

英文摘要:

We present detailed heat capacity measurements for Ba(Fe(1-x)Cox)2As2 and Ba(Fe(1-x)Nix)2As2 single crystals in the vicinity of the superconducting transitions. The specific heat jump at the superconducting transition temperature (Tc), Delta Cp/Tc, changes by a factor ~ 10 across these series. The Delta Cp/T$ vs. Tc data of this work (together with the literature data for Ba(Fe0.939Co0.061)2As2, (Ba0.55K0.45)Fe2As2, and (Ba0.6K0.4)Fe2As2) scale well to a single log-log plot over two orders of magnitude in Delta Cp/Tc and over about an order of magnitude in Tc, giving Delta Cp/Tc ~ Tc^2.

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。

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