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Surface electronic structure of Sr2RuO4

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arxiv cond-mat/0105487 v1 pith:QPXNQAYF submitted 2001-05-25 cond-mat.supr-con cond-mat.str-el

classification cond-mat.supr-concond-mat.str-el
keywords surfacearpeselectronicsr2ruo4statesstructureaddressedangle-resolved
verification ladder T0 review T1 audit T2 compute T3 formal
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We have addressed the possibility of surface ferromagnetism in Sr2RuO4 by investigating its surface electronic states by angle-resolved photoemission spectroscopy (ARPES). By cleaving samples under different conditions and using various photon energies, we have isolated the surface from the bulk states. A comparison with band structure calculations indicates that the ARPES data are most readily explained by a nonmagnetic surface reconstruction.

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