This work presents a study of the electronic phase separation resulting from oxygen non-stoichiometry in SrCoOx. We report here that for oxygen content 2.88 ≤ x ≤ 3, SrCoOx exhibits a magnetic phase separation while maintaining a single crystallographic phase. Two magnetic components are formed which match those found in SrCoO2.88 and SrCoO3 with TC = 220 K and 280 K, respectively. In addition, a value of TC = 160 K is assigned to the previously identified SrCoO2.75 phase. A magnetic phase diagram with four line phases is proposed for SrCoOx (2.5 ≤ x ≤ 3).
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Xie et al. (2011) studied this question.
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