Magnetic and Superconducting Phase Diagram of Electron-Doped Eu_2-xCe_xCuO_4+α-δ

Abstract:

We have investigated the magnetism and superconductivity of the electron-doped Eu_2-xCe_xCuO_4+α-δ in a wide range area of doping Ce⁴⁺ at 0.09 ≤ x ≤ 0.20 by means of magnetic susceptibility measurement at low temperatures down to 2 K. Superconductivity was observed in the concentration of Ce⁴⁺ at 0.12 ≤ x ≤ 0.20 with the range of the reduction of oxygen content 0.0255 ≤ δ ≤ 0.093 with a maximum transition temperature of 12 K. Furthermore, from the data temperature dependence of the dc magnetic-susceptibility, it can be analyzed the Curie constant, atomic magnetic moment and effective magnetic moment in each sample. Those three values have similar values with increasing Ce⁴⁺ concentration for a sample that doesn’t show superconductivity.

• Periodical: Solid State Phenomena (Volume 345)
• Pages: 53-59
• DOI: https://doi.org/10.4028/p-lzv0ZT
• Online since: July 2023
• Authors: Yati Maryati, Muhammad Abdan Syakuur, Utami Widyaiswari, Dita Puspita Sari, Togar Saragi, Risdiana Risdiana*
• Keywords: Electron-Doping, Magnetic Moment, Phase Diagram, Superconducting Cuprates

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