title: Extracting the cation distributions in NiFe2-xAlxO4 solid solutions using magnetic Compton scattering.
abstract: We discuss the ground state electronic structure and magnetization properties of a series of NiFe2-x Al x O4 solid solutions (x  =  0.0, 0.4, 0.8, 1.2, 1.6, and 2.0) using magnetic Compton scattering measurements, together with parallel first-principles computations. In this way, we systematically extract the complicated cation distributions in this ferrite system as a function of x. The relationship between the electronic ground state, magnetism, and cation distributions is explained in terms of a model, validated by our first-principles computations, wherein the magnetic properties of the three cation distributions are assumed to be different. A good accord is found between the computed and measured magnetic Compton profiles.
authors.affiliation: Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Space Institute, Tullahoma, TN 37388, USA.
authors.forename: S
authors.initials: S
authors.lastname: Kamali
authors.forename: K
authors.initials: K
authors.lastname: Shih
authors.forename: B
authors.initials: B
authors.lastname: Barbiellini
authors.forename: Y J
authors.initials: YJ
authors.lastname: Wang
authors.forename: S
authors.initials: S
authors.lastname: Kaprzyk
authors.forename: M
authors.initials: M
authors.lastname: Itou
authors.forename: A
authors.initials: A
authors.lastname: Bansil
authors.forename: Y
authors.initials: Y
authors.lastname: Sakurai