Dzyaloshinskii-Moriya anisotropy and non-magnetic impurities in the $s=1/2$ kagome system ZnCu_3(OH)_6Cl_2

Ioannis Rousochatzakis, Salvatore R. Manmana, Andreas M. Läuchli +2

Motivated by recent nuclear magnetic resonance experiments on ZnCu${}_3$(OH)${}_6$Cl${}_2$, we present an exact-diagonalization study of the combined effects of non-magnetic impurities a…