Chemical Pressure and Physical Pressure in BaFe2(As1-xPx)2
Chemical Pressure and Physical Pressure in BaFe2(As1-xPx)2
复制标题
DOI：
10.1143/jpsj.79.123706
复制
发表时间：
2010-12-01
影响因子：
1.7
通讯作者：
Terashima, Takahito
中科院分区：
文献类型：
--
作者：
Klintberg, Lina E.;Goh, Swee K.;Terashima, Takahito
在流体静压下，通过体交流磁化率测量了BaFe_（2-（As_（1-x）Rx））中几种浓度的磷替代物的超导转变温度T-c。未取代BaFe_2As_2的压力依赖性、BaFe_2（As_（1-x）Px）（2）的磷浓度依赖性以及BaFe_2（As_（1-x）Px）（2）的压力依赖性都指向相同的最大Tc 31 K。这表明磷替代和物理压力导致类似的超导相图，并且磷替代不会引起实质性的杂质散射。
Measurements of the superconducting transition temperature, T-c, under hydrostatic pressure via bulk AC susceptibility were carried out on several concentrations of phosphorous substitution in BaFe2-(As1-xRx)(2). The pressure dependence of unsubstituted BaFe2As2, phosphorous concentration dependence of BaFe2(As1-xPx)(2), as well as the pressure dependence of BaFe2(As1-xPx)(2) all point towards an identical maximum T-c of 31 K. This demonstrates that phosphorous substitution and physical pressure result in similar superconducting phase diagrams, and that phosphorous substitution does not induce substantial impurity scattering.