Optimizing the solution growth of the superconductor CaKFe$_{4}$As$_{4}$
ORAL
Abstract
High-quality single crystals of the new iron-based superconductor CaKFe$_{4}$As$_{4}$ were grown from a high-temperature, quaternary, iron-arsenic rich solution[1]. The characteristics of this four-element system lead to a modified optimization routine of the growth protocol exploiting measurements of physical properties (resistance and magnetization) in addition to more routine x-ray phase analysis. We will emphasize how events informed our adjustments of the protocol and present a schematic phase diagram established by the process. \linebreak $[1]$ W. R. Meier {\it et al.}, Phys. Rev. B 94, 064501 (2016).
*This work is supported by the US DOE, Basic Energy Sciences under Contract No. DE-AC02-07CH11358 and the Gordon and Betty Moore Foundation’s EPiQS Initiative through Grant GBMF4411.
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Authors
William R. Meier
Iowa State University, Ames, Iowa 50011, USA., Ames Laboratory US DOE, Department of Physics and Astronomy
T. Kong
Iowa State University, Ames, Iowa 50011, USA., Ames Laboratory US DOE, Department of Physics and Astronomy
G. Drachuck
Iowa State University, Ames, Iowa 50011, USA., Ames Laboratory US DOE, Department of Physics and Astronomy
S. M. Saunders
Iowa State University, Ames, Iowa 50011, USA., Ames Laboratory US DOE, Department of Physics and Astronomy
A. Sapkota
Iowa State University, Ames, Iowa 50011, USA., Ames Laboratory US DOE, Department of Physics and Astronomy
A. Kreyssig
Iowa State University, Ames, Iowa 50011, USA., Ames Laboratory US DOE, Department of Physics and Astronomy
A. I. Goldman
Iowa State University, Ames, Iowa 50011, USA., Ames Laboratory US DOE, Department of Physics and Astronomy
S. L. Bud'ko
Iowa State University, Ames, Iowa 50011, USA., Ames Laboratory US DOE, Department of Physics and Astronomy
P. C. Canfield
Iowa State University, Ames, Iowa 50011, USA., Ames Laboratory US DOE, Department of Physics and Astronomy
