Structure and magnetism of Eu1-xDyxTiO(3)

摘要

Structure and magnetism have been investigated for perovskite Eu1-xDyxTiO3. It is known that while EuTiO3 (x = 0) exhibits antiferromagnetism below similar to6 K, DyTiO3 (x = 1) becomes a ferrimagnet below similar to64 K. The crystal structures are assigned to be cubic and orthorhombic for x less than or equal to 0.3 and x greater than or equal to 0.4, respectively. Magnetic transitions are observed for all the compounds. The valence of Eu is assumed to be 2+ in the solid solutions as well on the basis of inverse susceptibility data. Characteristic phenomena, such as the metallic ferromagnetism for 0.1 less than or equal to x less than or equal to similar to0.5, are likely due to a mixed or an intermediate valence state of Ti. (C) 2003 Elsevier Science (USA). All rights reserved. [References: 11]