Alkali superoxide CsO 2 is one of candidates for the spin-1 2 one-dimensional (1D) antiferromagnet, which may be sequentially caused by an ordering of the π-orbital of O − 2 molecule below T S ∼ 70 K. Here, we report on the magnetism in powder CsO 2 and high-magnetic field magnetization measurements in pulsed-magnetic fields of up to 60 T. We obtained the low temperature phase diagram around the antiferromagnetic ordering temperature T N = 9.6 K under the magnetic field. At 1.3 K, remarkable up-turn curvature in the magnetization around a saturation field of ∼ 60 T is found, indicating the low-dimensional nature of the spin system. The saturated magnetization is also estimated to be ∼ 1µ B , which corresponds to the spin-1 2 . We will compare it with the theoretical calculation.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.