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Deutsche Physikalische Gessellschaft IOP Institute of Physics

Electronic structure near the 1/8-anomaly in La-based cuprates

J Chang1, Y Sassa1, S Guerrero2, M Månsson1,3, M Shi4, S Pailhés1, A Bendounan1, R Mottl1, T Claesson3, O Tjernberg3, L Patthey4, M Ido5, M Oda5, N Momono5,6, C Mudry2 and J Mesot1,7

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We report an angle-resolved photoemission study of the electronic structure of the pseudogap state in La1.48Nd0.4Sr0.12CuO4 (Tc<7 K). Two opposite dispersing Fermi arcs are the main result of this study. Several scenarios that can explain this observation are discussed.


PACS

74.25.Jb Electronic structure

74.72.Dn La-based cuprates

79.60.-i Photoemission and photoelectron spectra

Subjects

Superconductivity

Condensed matter: electrical, magnetic and optical

Dates

Issue 10 (October 2008)

Received 16 June 2008

Published 10 October 2008



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