Localized Triplons and Site Stuffing in the Quantum Dimer Magnet BiYbGeO${}_5$

Rachit Kapoor, J. Ramirez Diaz, D. Yahne +2

Thermodynamic and muon spin-relaxation measurements have recently highlighted BiYbGeO${}_5$ as a new example of a rare-earth-based quantum dimer magnet with isolated Yb${}^{3+}$ spin-$…