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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
Meng, JQ Oppeneer, PM Mydosh, JA Riseborough, PS Gofryk, K Joyce, JJ Bauer, ED Li, Y Durakiewicz, T
Meng, JQ
Oppeneer, PM
Mydosh, JA
Riseborough, PS
Gofryk, K
Joyce, JJ
Bauer, ED
Li, Y
Durakiewicz, T
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Journal Article
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2013-09-19
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10.1103/PhysRevLett.111.127002
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We 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.
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Physical Review Letters
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