Co-intercalated ZrNCl shows a superconducting transition near 15 K
Researchers inserted sodium ions and 1,3-diaminopropane molecules between ZrNCl layers and followed the superconducting transition in magnetic fields.
The team introduced sodium ions and 1,3-diaminopropane molecules into the gaps between layers of rhombohedral ZrNCl. The resulting compound began its superconducting transition at approximately 15 K.
The field needed to suppress superconductivity depended on its orientation relative to the layers. The authors found that a two-band model described the temperature dependence of the upper critical field. Liyuan Zhang at SUSTech is the corresponding author of the paper in Superconductivity.