Max Planck Institute for Solid State Research

Effect of Te doping on the structure and superconductivity of K_0.8Fe₂Se_2-zTe_zsingle crystals

Authors

M. T. Li, W. P. Liu, and C. T. Lin

Departments

We report the structure, transport, and magnetic properties of K_xFe_2−ySe_2−zTe_z single crystals grown by optical floating zone technique. The phase separation phenomena were observed in the Te-doped samples. With increasing Te doping level, the c-axis lattice parameter expands for both insulating/semiconducting and superconducting phases. The critical current density was estimated to be ≈10³–10⁴ A/cm² for the all doped samples. The capability of carrying superconducting current is reduced towards high magnetic field with increase of Te doping.

For the full text, see the German version.

Corresponding author

Chengtian Lin

CT.Lin@... Max Planck Institute for Solid State Research

References

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Effect of Te doping on the structure and superconductivity of K0.8Fe2Se2-zTez single crystals

Effect of Te doping on the structure and superconductivity of K_0.8Fe₂Se_2-zTe_zsingle crystals