Electronic structure of planes: From insulator to superconductor

S. LaRosa, I. Vobornik, F. Zwick, H. Berger, M. Grioni, G. Margaritondo, R. Kelley, M. Onellion, A. Chubukov

Research output: Contribution to journalArticlepeer-review

82 Scopus citations


Using angle-resolved photoemission and linearly polarized synchrotron radiation, we measured the electronic band structure of electronic states of CuO(Formula presented) plane materials ranging from insulators (Sr(Formula presented) to overdoped superconductors (Bi(Formula presented). We report three results: (i) The CuO(Formula presented) containing insulator possesses a spin-density-wave (SDW) ground state; (ii) there are precursors of the SDW state for underdoped Bi(Formula presented) (iii) an extended saddle-point-type van Hove singularity is neither a necessary nor a sufficient condition for a high superconducting transition temperature, (Formula presented).

Original languageEnglish (US)
Pages (from-to)R525-R528
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number2
StatePublished - 1997

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