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Imaging the Three-Dimensional Fermi-Surface Pairing near the Hidden-Order Transition in URu2Si2 Using Angle-Resolved Photoemission Spectroscopy
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
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2013 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 111, no 12, 127002- p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2013. Vol. 111, no 12, 127002- p.
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Natural Sciences
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URN: urn:nbn:se:uu:diva-209475DOI: 10.1103/PhysRevLett.111.127002ISI: 000324638700007OAI: oai:DiVA.org:uu-209475DiVA: diva2:659087
Available from: 2013-10-24 Created: 2013-10-21 Last updated: 2017-12-06Bibliographically approved

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Oppeneer, Peter M.

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