Observation of fractional spin<i>S</i>=1/2 on open ends of<i>S</i>=1 linear antiferromagnetic chains: Nonmagnetic doping
Approximately 0.5% of nonmagnetic divalent ions Zn, Cd, and Hg have been alternatively substituted for Ni in the linear chain of antiferromagnetically coupled ${\mathrm{Ni}}^{2+...