The Hefei Light Source and Hefei Advanced Light Facility User Meeting 2026 was held at Jilin University in Changchun from 26 to 28 July. Qisi gave an invited talk in the Materials and Condensed Matter session entitled “Magnetic phase diagram of infinite-layer nickelates.” He discussed the correlation strength of infinite-layer nickelates and the evolution of their magnetic excitations with rare-earth substitution, illustrating how synchrotron spectroscopy can uncover the interactions underlying nickelate superconductivity.