We show on the basis of electronic structure calculations that the uranium 5f magnetic moment in URu2Si2 exhibits a unique Ising behavior, which surprisingly, arises from itinerant electronic states. The origin of the unusual Ising behavior is analyzed as due to the peculiar near-Fermi edge nested electronic structure of URu2Si2 involving its strong spin-orbit interaction. The Ising anisotropy has pertinent implications for theories applicable to explaining the Hidden Order phase in URu2Si2.
@article{arxiv.1405.1631,
title = {Exceptional Ising Magnetic Behavior of Itinerant Spin-polarized Carriers in URu2Si2},
author = {Miroslaw Werwinski and Jan Rusz and John A. Mydosh and Peter M. Oppeneer},
journal= {arXiv preprint arXiv:1405.1631},
year = {2015}
}