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arXiv · 1009.2716

Chemical Pressure and Physical Pressure in BaFe_2(As_{1-x}P_{x})_2

Lina E. Klintberg·Swee K. Goh·Shigeru Kasahara·Yusuke Nakai·Kenji Ishida·Michael Sutherland·Takasada Shibauchi·Yuji Matsuda·Takahito Terashima
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Abstract

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 BaFe_2(As_{1-x}P_x)_2. The pressure dependence of unsubstituted BaFe_2As_2, phosphorous concentration dependence of BaFe_2(As_{1-x}P_x)_2, as well as the pressure dependence of BaFe_2(As_{1-x}P_x)_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.

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Lina E. Klintberg, Swee K. Goh, Shigeru Kasahara, Yusuke Nakai, Kenji Ishida, Michael Sutherland, Takasada Shibauchi, Yuji Matsuda, Takahito Terashima. 2010-10-21. Chemical Pressure and Physical Pressure in BaFe_2(As_{1-x}P_{x})_2. https://doi.org/10.1143/jpsj.79.123706

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