This paper presents the influence of the iron fraction and of the sintering atmosphere on the magnetic properties of bulk iron-doped indium oxide In 2− x Fe x O 3 . The formation of a solid solution between β - Fe 2 O 3 and In 2 O 3 up to x ∼0.3 under argon atmosphere and x ∼0.55 under air has been evidenced. All single-phase samples are paramagnetic, with dominant antiferromagnetic interactions and a paramagnetic effective moment originating from Fe 3+ ions. For the higher x values, a cluster glass or superparamagnetic behaviour can be closely linked to the presence of Fe 2 O 3 or Fe 3 O 4 inclusions. No trace of ferromagnetism has been detected, even with samples prepared under argon.
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Bérardan et al. (2007) studied this question.
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