A Structural and Magnetic Study of the Series of Double Perovskites Ca2Fe1+xW1–xO6 (pages 3750–3757)
María Retuerto, José Antonio Alonso, María Jesús Martínez-Lope, Mar García-Hernández, Carlos A. López, María del Carmen Viola, José C. Pedregosa and María Teresa Fernández-Díaz
Article first published online: 22 JUL 2009 | DOI: 10.1002/ejic.200900255
Double perovskites of type Ca2Fe1+xW1–xO6 show degrees of antisite disordering that increase with the average oxidation stateof Fe. These compounds range from ascenario where the antiferromagnetic patches are isolated, to a model where the Fe-rich patches, which are strongly coupled via Fe–O–Fe superexchange interactions, present an excellent coherence across the crystal.