Field-Induced Instability of a Gapless Spin Liquid with a Spinon Fermi Surface

M. Gomilšek, M. Klanjšek, R. Žitko +6

The ground state of the quantum kagome antiferromagnet Zn-brochantite, ZnCu${}_3$(OH)${}_6$SO${}_4$, which is one of only a few known spin-liquid (SL) realizations in two or three dimens…