Imaging the three-dimensional fermi-surface pairing near the hidden-order transition in URu<inf>2</inf>Si<inf>2</inf> using angle-resolved photoemission spectroscopy
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AbstractWe report angle-resolved photoemission spectroscopy experiments probing deep into the hidden-order state of URu2Si2, utilizing tunable photon energies with sufficient energy and momentum resolution to detect the near Fermi-surface (FS) behavior. Our results reveal (i) the full itinerancy of the 5f electrons, (ii) the crucial three-dimensional k-space nature of the FS and its critical nesting vectors, in good comparison with density-functional theory calculations, and (iii) the existence of hot-spot lines and pairing of states at the FS, leading to FS gapping in the hidden-order phase. © 2013 American Physical Society.
Citation to related workAmerican Physical Society (APS)
Has partPhysical Review Letters
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