Spin freezing is one of the most common but least understood regimes of spin ordering in magnetic materials. Unlike conventional ordering, which results in the long-range magnetic structure and appearance of elastic magnetic scattering and Bragg peaks, spin freezing results in a short-range order characteristic of a correlated glass. With the proposed experiment we will extend the temperature and energy range, towards lower energy, in which spin fluctuations of a layered cobalt oxide have been studied, a system that shows stripe-like charge order and quasi-1D antiferromagnetic short range order. This is significant for understanding the ground state of this particular system, and has implications for copper-oxide high-Tc superconductors which are isostructural materials.A single crystal of the title compound, that has been characterized with neutron scattering methods before, will be used for this study.