Influence of Mg, Be, Sr, and Zn Substitution on Structure, Phonon Modes, and Superconductivity in CuTl-1212 Cuprates

Key Points

• Substitution of metals like Mg, Be, Sr, and Zn alters phonon modes, impacting superconductivity.
• Key differences in superconductivity were noted, especially with magnesium showing significant changes compared to others.
• Analysis of various metal substitutions in the CuTl-1212 structure reveals complex interactions affecting superconducting properties.
• Understanding these substitution effects may enable the design of better superconductors for practical applications.