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The surface state of URu2Si2

F.L. Boariu A. Nuber A.F. Santander-Syro 1 M. Klein F. Forster Pascal Lejay 2 F. Reinert
1 CSNSM PS2
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
2 CrisMass - Cristaux Massifs
NEEL - Institut Néel
Abstract : The 'hidden-order' (HO) transition of URu2Si2 remains a puzzle after 25 years of research. Using high-resolution angle-resolved photoemission spectroscopy (ARPES) we found that a hole-like band around Γ having its band maximum at E = −35 meV, and previously thought to be a bulk band of the system, is indeed a surface state not related to the HO phase transition. Here we present our detailed investigations to assign that state to a surface feature, and discuss on the possible origins of this surface band.
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Submitted on : Tuesday, February 14, 2012 - 3:47:03 PM
Last modification on : Friday, December 18, 2020 - 1:08:01 PM

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F.L. Boariu, A. Nuber, A.F. Santander-Syro, M. Klein, F. Forster, et al.. The surface state of URu2Si2. Journal of Electron Spectroscopy and Related Phenomena, Elsevier, 2010, 181 (1), pp.82-87. ⟨10.1016/j.elspec.2010.05.016⟩. ⟨in2p3-00670116⟩

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