Room-temperature ferromagnetism in polycrystalline Zn1-xFexO (0≤x≤0.075) solid solutions synthesized by the precursor method

Polycrystalline Zn1-xFexO (0 ≤ x ≤ 0.075) solid solutions with the wurtzite structure belonging to the class of diluted magnetic semiconductors were synthesized by the precursor method using mixed Zn1-xFex(HCOO)2·2H2O formate as a precursor. As an example we show for samples with x = 0.025 and 0.05 that the room-temperature magnetic moment of Zn1-xFexO solid solutions increases regularly with the iron concentration.