Exceptional Ising Magnetic Behavior of Itinerant Spin-polarized Carriers in URu2Si2

Abstract

We show on the basis of electronic structure calculations that the uranium 5$f$ magnetic moment in URu${}_2$Si${}_2$ 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 URu${}_2$Si${}_2$ involving its strong spin-orbit interaction. The Ising anisotropy has pertinent implications for theories applicable to explaining the Hidden Order phase in URu${}_2$Si${}_2$.

5 pages, 3 figures; to be published

References in corpus (5)

• Gapped itinerant spin excitations account for missing entropy in the hidden order state of URu${}_2$Si${}_2$
• Emergent Rank-5 'Nematic' Order in URu2Si2
• Hastatic Order in URu2Si2
• The modulated spin liquid: a new paradigm for URu${}_2$Si${}_2$
• Hidden and antiferromagnetic order as a rank-5 superspin in URu2Si2

Cited by in corpus (3)

• Hidden order and beyond: an experimental-theoretical overview of the multifaceted behavior of URu${}_2$Si${}_2$
• Efficient Method for Prediction of Meta-stable/Ground Multipolar Ordered States and its Application in Monolayer $\alpha$-\ce{RuX3} (X=Cl,I)
• Occupation deficiency in layered structures of UNi${}_x$Sb${}_2$ ($0\le x\le 1$) studied by density functional theory supercell calculations