Published in
American Physical Society, Physical review B, 2(84)
DOI: 10.1103/physrevb.84.024411
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Violation of Hund’s third rule in structurally disordered ferromagnets
,
P. Poulopoulos,
K. Özdogan,
M. Angelakeris,
F. Wilhelm,
A. Rogalev
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Abstract
Violation of Hund’s third rule caused by structural disorder is observed for the induced magnetic moment of Zr, using X-ray magnetic circular dischroism. The induced spin and orbital magnetic moments are anti-parallel in the crystalline state, but parallel in an amorphous state of the investi- gated Co- and Fe-based materials. First principles calculations are used to provide physical insight into the dependency of the spin-orbit coupling on the interatomic distance and coordination number.