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http://dx.doi.org/10.9714/psac.2014.16.3.001

Synthesis and pressure effects on the La doped CaFe2As2  

Shin, Soohyeon (Department of physics, Sungkyunkwan University)
Shang, T. (Department of physics, Zhejiang University)
Yuan, H.Q. (Department of physics, Zhejiang University)
Park, Tuson (Department of physics, Sungkyunkwan University)
Publication Information
Progress in Superconductivity and Cryogenics / v.16, no.3, 2014 , pp. 1-3 More about this Journal
Abstract
We have synthesized La doped $CaFe_2As_2$ single crystals with Sn flux in an evacuated quartz ampule. Doping and pressure effects on the magnetic and superconducting properties of the under-doped $Ca_{1-x}La_xFe_2As_2$ (x=0.08, 0.1) were studied by measuring electrical resistivity under quasi-hydrostatic pressure up to 21 kbar. Magnetic transition temperatures for all studied concentrations were sharply suppressed with slight amplitude of pressure, less than 3 kbar, while superconducting transition temperatures were robust against pressure. In this communication, we report temperature-pressure phase diagram for the La-doped $CaFe_2As_2$ single crystals.
Keywords
La doped $CaFe_2As_2$ single crystal; pressure; superconductivity; SDW (Spin density waves);
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