Magnetic Properties of SrFe1-xCoxO3

Mössbauer effect studies, magnetic measurements, and neutron diffraction analyses were performed to investigate the electronic state of SrFe
_1-x
Co
_x
O
₃
. For 0. 2 ≤ x ≤ 1. 0 the compound is ferromagnetic, and as x decreases the magnetization increases linearly; extrapolation to x = 0 gives a magnetic moment of 3. 73 μB/F. U., close to that for a high-spin state in Fe
⁴⁺
. Mössbauer spectra also indicated a high-spin state for Fe
⁴⁺
in the range 0 ≤ x ≤ 0.2.