Gapless quantum spin liquid in the triangular system Sr${}_3$CuSb${}_2$O${}_9$

S. Kundu, Aga Shahee, Atasi Chakraborty +9

We report gapless quantum spin liquid behavior in the layered triangular Sr${}_3$CuSb${}_2$O${}_9$ (SCSO) system. X-ray diffraction shows superlattice reflections associated with a…