Search for magnetic ordered phase in Zn 0.99 Co 0.01 O compound using μSR method

The behavior of the polarization of negative muons in Zn 0.99 Co 0.01 O was studied in order to search for a possible magnetic ordered phase. The sample was obtained using solid phase synthesis from ZnO and Co 3 O 4 . Measurements were performed in a magnetic field of 1.5 kG transverse to the muon spin in a temperature range of 5–300 K and in the absence of an external magnetic field at 6 K. No evidence of long-range magnetic order were observed.