title: Magnetic ground states of CaRu(1-x)Mn(x)O(3)(0.2 ≤ x ≤ 0.9): a magnetic Compton scattering study.
abstract: The magnetism of CaRu(1-x)Mn(x)O(3)(0.2≤x≤0.9) was studied by the magnetic Compton scattering experiment. The result of the spin-polarized electron momentum density distributions (magnetic Compton profiles) and the absolute value of spin moment indicate that Mn doping introduces magnetic moments on Ru ions, and the Ru and Mn spin moments were antiferromagnetically coupled. Moreover the spin moment of Ru ions increased proportionally in the x range. These results were explained by a mixed valence model and inhomogeneous magnetic structure, where the inhomogeneous magnetic ground state in CaRu(1-x)Mn(x)O(3) would be formed by a ferrimagnetic network from the Mn(3.5+) and Ru(4.5+) clusters in the paramagnetic matrix CaRuO(3) for x<0.5 and in the antiferromagnetic matrix CaMnO(3) for x>0.5.
authors.affiliation: College of Science and Engineering, Aoyama Gakuin University, Fuchinobe, Sagamihara, Kanagawa 157-8572, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Mizusaki
authors.forename: T
authors.initials: T
authors.lastname: Taniguchi
authors.forename: N
authors.initials: N
authors.lastname: Okada
authors.forename: Y
authors.initials: Y
authors.lastname: Nagata
authors.forename: N
authors.initials: N
authors.lastname: Hiraoka
authors.forename: M
authors.initials: M
authors.lastname: Itou
authors.forename: Y
authors.initials: Y
authors.lastname: Sakurai
authors.forename: Y
authors.initials: Y
authors.lastname: Noro
authors.forename: T C
authors.initials: TC
authors.lastname: Ozawa
authors.forename: H
authors.initials: H
authors.lastname: Samata