2005/10/23 by T. Yoshida, X. J. Zhou, K. Tanaka +17 · 9 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Analytical Chemistry (journal) #Chemistry #Condensed matter physics #Doping #Electron #Fermi level #Fermi surface #Magnetic and transport properties of perovskites and related materials #Materials science #Photoemission spectroscopy #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Spectral line #Superconductivity #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.74.224510
published as Phys. Rev. B 74, 224510 (2006). · 4 pages, 4 figures
arxiv created 2005/10/23 · openalex publication_date 2006/12/28 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We have performed a systematic doping-dependent study of La_2\ensuremath-xSrxCuO4 (LSCO) (0.03\ensuremath\leqslantx\ensuremath\leqslant0.3) by angle-resolved photoemission spectroscopy. Over this entire doping range, the underlying ``Fermi surface'' determined from the low-energy spectral weight approximately satisfies Luttinger's theorem, even down to the lightly doped region. This is in strong contrast to the results on Ca_2\ensuremath-xNaxCuO2Cl2 (Na-CCOC), which show a clear deviation from Luttinger's theorem. We correlate these differences between LSCO and Na-CCOC with differences in the behavior of chemical potential shift and spectral weight transfer induced by hole doping.