Extracting the cation distributions in NiFe2−xAlxO4 solid solutions using magnetic Compton scattering

We discuss the ground state electronic structure and magnetization properties of a series of NiFe2−xAlxO4 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 extr...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2015-11, Vol.27 (45), p.456003-456003
Main Authors: Kamali, S, Shih, K, Barbiellini, B, Wang, Y J, Kaprzyk, S, Itou, M, Bansil, A, Sakurai, Y
Format: Article
Language:English
Subjects:
band structure calculations
magnetic Compton scattering
magnetism
NiAl
nickel ferrite
NiFe
solid solution
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Summary:We discuss the ground state electronic structure and magnetization properties of a series of NiFe2−xAlxO4 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.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/27/45/456003