πŸ’Ž Why do two forms of La3Ni2O7 exhibit very different superconductivity? A new study on the monolayer-trilayer phase says it comes down to interlayer coupling of bilayer NiO6 units. Check it out: ↧ Superconductivity in Monolayer-Trilayer Phase of ${\mathrm{La}} {3}... High-pressure studies on the 1313 monolayer-trilayer polymorph of ${\text{La}} {3}{\text{Ni}} {2}{\text{O}} {7}$ reveal a dramatically reduced ${T} {c}$ of $3.6\text{ K}$, proving that coupled bilayer motifs are essential for $80\text{ K}$ superconductivity.