3 papers
cond-mat.str-el2026
Entwined lattice of atoms and anionic electrons in layered electride LaCl
Songyuan Geng, Xin Wang, Jianqi Zhong +14
Controlling the lattice geometry that governs electronic structure is a central theme in condensed-matter physics, yet in crystalline solids this geometry is usually fixed by the a…
cond-mat.mtrl-sci2026
YCl Electride as a Multi-Orbital Correlated Topological Dice Lattice System
Jianqi Zhong, Songyuan Geng, Teng-Fei Ying +2
The long-sought dice lattice flat band has recently been discovered for the first time in two-dimensional layered electride yttrium monochloride (YCl) [Nature Communications 17, 22…
cond-mat.str-el2025
Experimental realization of dice-lattice flat band at the Fermi level in layered electride YCl
Songyuan Geng, Xin Wang, Risi Guo +15
Flat electronic bands, where interactions among electrons overwhelm their kinetic energies, hold the promise for exotic correlation physics. The dice lattice has long been theorize…